Difference between revisions of "Platinum Series Troubleshooting (18K & 24K)"

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(Created page with "{| class="wikitable" | rowspan="3"| NO. | rowspan="3"| Malfunction Name | colspan="4"| Display Method of Indoor Unit | colspan="4"| Display Method of Outdoor Unit | rowspan="...")
 
 
(4 intermediate revisions by the same user not shown)
Line 1: Line 1:
 
{| class="wikitable"
 
{| class="wikitable"
−
| rowspan="3"| NO.
 
 
| rowspan="3"| Malfunction Name
 
| rowspan="3"| Malfunction Name
 
| colspan="4"| Display Method of Indoor Unit  
 
| colspan="4"| Display Method of Indoor Unit  
Line 19: Line 18:
 
| D43/D30
 
| D43/D30
 
|-  
 
|-  
−
|1
 
 
| High pressure protection of system
 
| High pressure protection of system
 
| E1
 
| E1
Line 25: Line 23:
 
|  
 
|  
 
|
 
|
−
| off
+
| off  
−
| blinking
+
| blink
−
| blinking
+
| blink
−
| blinking
+
| blink
 
| During cooling and drying operation, all loads except the indoor fan stop operation. During heating operation, the entire unit stops.
 
| During cooling and drying operation, all loads except the indoor fan stop operation. During heating operation, the entire unit stops.
 
|  
 
|  
Line 35: Line 33:
 
* Ambient temperature is too high.
 
* Ambient temperature is too high.
 
|-
 
|-
−
| 2
 
 
| Antifreezing protection
 
| Antifreezing protection
 
| E2
 
| E2
Line 41: Line 38:
 
|  
 
|  
 
|
 
|
−
| on
+
| on 
 +
| off
 +
| on  
 
| off  
 
| off  
−
| on
 
−
| off
 
 
| During cooling and drying operation, compressor and outdoor fan stop while indoor fan operates.
 
| During cooling and drying operation, compressor and outdoor fan stop while indoor fan operates.
 
|
 
|
Line 51: Line 48:
 
* Evaporator is dirty;
 
* Evaporator is dirty;
 
|-
 
|-
−
| 3
 
 
| High discharge temperature protection of compressor
 
| High discharge temperature protection of compressor
 
| E4
 
| E4
Line 57: Line 53:
 
|
 
|
 
|
 
|
 +
| on 
 +
| off
 
| on  
 
| on  
−
| off
+
| blink
−
| on
 
−
| blinking
 
 
| During cooling and drying operation, compressor and outdoor fan stop while indoor fan operates. During heating, all loads stop.
 
| During cooling and drying operation, compressor and outdoor fan stop while indoor fan operates. During heating, all loads stop.
−
| Please refer to malfunction analysis below.
+
| Please refer to the [[:File:Service_Manual_Platinum.pdf|service manual]]
 
|-
 
|-
−
| 4
 
 
| Overcurrent protection
 
| Overcurrent protection
 
| E5
 
| E5
Line 72: Line 67:
 
| off  
 
| off  
 
| on
 
| on
−
| blinking
+
| blink
−
| off
+
| off  
 
| During cooling and drying operation, compressor and outdoor fan stop while indoor fan operates. During heating, all loads stop.
 
| During cooling and drying operation, compressor and outdoor fan stop while indoor fan operates. During heating, all loads stop.
 
|
 
|
Line 80: Line 75:
 
* Evaporator is dirty;
 
* Evaporator is dirty;
 
|-
 
|-
−
| 5
 
 
| Communication malfunction
 
| Communication malfunction
 
| E6
 
| E6
Line 88: Line 82:
 
| off
 
| off
 
| off
 
| off
−
| off
+
| off  
−
| blinking
+
| blink
 
| During cooling and drying operation, compressor and outdoor fan stop while indoor fan operates. During heating, all loads stop.
 
| During cooling and drying operation, compressor and outdoor fan stop while indoor fan operates. During heating, all loads stop.
−
| Please refer to malfunction analysis below.
+
| Please refer to the [[:File:Service_Manual_Platinum.pdf|service manual]]
 
|-
 
|-
−
| 6
 
 
| High temperature resistant protection
 
| High temperature resistant protection
 
| E8
 
| E8
Line 104: Line 97:
 
| on  
 
| on  
 
| During cooling and drying operation, compressor and outdoor fan stop while indoor fan operates. During heating, all loads stop.
 
| During cooling and drying operation, compressor and outdoor fan stop while indoor fan operates. During heating, all loads stop.
−
| Please refer to malfunction analysis below.
+
| Please refer to the [[:File:Service_Manual_Platinum.pdf|service manual]]
 
|-
 
|-
−
| 8
 
 
| EEPROM malfunction
 
| EEPROM malfunction
 
| EE
 
| EE
Line 112: Line 104:
 
|  
 
|  
 
| Off 3s and blink 15 times  
 
| Off 3s and blink 15 times  
−
| Off 3s and blink 11 times
+
| off
−
|
+
| off
−
|
+
| off
 +
| on
 
| During cooling and drying operation, compressor and outdoor fan stop while indoor fan operates. During heating, all loads stop.
 
| During cooling and drying operation, compressor and outdoor fan stop while indoor fan operates. During heating, all loads stop.
 
| Replace outdoor control panel AP1
 
| Replace outdoor control panel AP1
 
|-
 
|-
−
| 9
 
 
| Limit/decrease frequency due to high temperature of module
 
| Limit/decrease frequency due to high temperature of module
 
| EU
 
| EU
 
|  
 
|  
−
| Off 3s and blink 6 times
+
|  
−
| Off 3s and blink 6 times
+
|  
−
|
+
| on
−
|
+
| on
−
|
+
| on
 +
| blink
 
| All loads operate normally, while operation frequency for compressor is decreased.
 
| All loads operate normally, while operation frequency for compressor is decreased.
 
| Discharging after the complete unit is de-energized for 20mins, check whether the thermal grease on IPM module of outdoor control panel AP1 is sufficient and whether the radiator is inserted tightly. If it is no use, please replace control panel AP1.
 
| Discharging after the complete unit is de-energized for 20mins, check whether the thermal grease on IPM module of outdoor control panel AP1 is sufficient and whether the radiator is inserted tightly. If it is no use, please replace control panel AP1.
 
|-
 
|-
−
| 10
 
 
| Malfunction protection of jumper cap
 
| Malfunction protection of jumper cap
 
| C5
 
| C5
Line 136: Line 128:
 
|
 
|
 
|
 
|
 +
|
 
|
 
|
 
|
 
|
Line 146: Line 139:
 
* Abnormal detecting circuit of main board;
 
* Abnormal detecting circuit of main board;
 
|-
 
|-
−
| 11
 
−
| Gathering refrigerant
 
−
| F0
 
−
| Off 3s and blink once
 
−
| Off 3s and blink once
 
−
|
 
−
|
 
−
|
 
−
|
 
−
| When the outdoor unit receives the F0 signal, the system will be forced to run under cooling mode for gathering refrigerant.
 
−
| Nominal cooling mode
 
−
|-
 
−
| 12
 
 
| Indoor ambient temperature sensor is open/short circuited  
 
| Indoor ambient temperature sensor is open/short circuited  
 
| F1
 
| F1
Line 164: Line 144:
 
| Off 3s and blink once  
 
| Off 3s and blink once  
 
|
 
|
 +
|
 
|
 
|
 
|
 
|
Line 174: Line 155:
 
* Main board damaged;
 
* Main board damaged;
 
|-
 
|-
−
| 13
 
 
| Indoor evaporator temperature sensor is open/short circuited
 
| Indoor evaporator temperature sensor is open/short circuited
 
| F2
 
| F2
 
|  
 
|  
 
| Off 3s and blink twice  
 
| Off 3s and blink twice  
 +
|
 
|  
 
|  
 
|
 
|
Line 190: Line 171:
 
* Main board damaged;
 
* Main board damaged;
 
|-
 
|-
−
| 14
 
 
| Outdoor ambient temperature sensor is open/short circuited
 
| Outdoor ambient temperature sensor is open/short circuited
 
| F3
 
| F3
Line 196: Line 176:
 
| Off 3s and blink 3 times
 
| Off 3s and blink 3 times
 
|
 
|
−
|
+
| off
−
| Off 3s and blink 6 times
+
| off
−
|  
+
| blink  
 +
| on
 
| During cooling and drying operation, compressor and outdoor fan stop while indoor fan operates. During heating, all loads stop.
 
| During cooling and drying operation, compressor and outdoor fan stop while indoor fan operates. During heating, all loads stop.
 
| Outdoor temperature sensor hasn't been connected well or is damaged.
 
| Outdoor temperature sensor hasn't been connected well or is damaged.
 
|-
 
|-
−
| 15
 
 
| Outdoor condenser temperature sensor is open/short circuited  
 
| Outdoor condenser temperature sensor is open/short circuited  
 
| F4
 
| F4
Line 208: Line 188:
 
| Off 3s and blink 4 times
 
| Off 3s and blink 4 times
 
|  
 
|  
−
|  
+
| off
−
| Off 3s and blink 5 times
+
| off
−
|  
+
| blink  
 +
| off
 
| During cooling and drying operation, compressor and outdoor fan stop while indoor fan operates. During heating, all loads stop.
 
| During cooling and drying operation, compressor and outdoor fan stop while indoor fan operates. During heating, all loads stop.
 
| Outdoor temperature sensor hasn't been connected well or is damaged.
 
| Outdoor temperature sensor hasn't been connected well or is damaged.
 
|-
 
|-
−
|16
 
 
| Outdoor discharge temperature sensor is open/short circuited
 
| Outdoor discharge temperature sensor is open/short circuited
 
| F5
 
| F5
Line 220: Line 200:
 
| Off 3s and blink 5 times  
 
| Off 3s and blink 5 times  
 
|
 
|
−
|  
+
| off 
−
| Off 3s and blink 7 times
+
| off
−
|  
+
| blink  
 +
| blink
 
| During cooling and drying operation, compressor will stop after operating for about 3 mins while indoor fan will operate. During heating operation, the complete unit will stop after operating for about 3 minutes.  
 
| During cooling and drying operation, compressor will stop after operating for about 3 mins while indoor fan will operate. During heating operation, the complete unit will stop after operating for about 3 minutes.  
 
|  
 
|  
Line 228: Line 209:
 
* The head of temperature sensor hasn't been inserted in to the copper tube;
 
* The head of temperature sensor hasn't been inserted in to the copper tube;
 
|-
 
|-
−
| 17
 
 
| Limit/decrease frequency due to overload
 
| Limit/decrease frequency due to overload
 
| F6
 
| F6
Line 234: Line 214:
 
| Off 3s and blink 6 times
 
| Off 3s and blink 6 times
 
|  
 
|  
−
|  
+
| on
−
| Off 3s and blink 3 times
+
| off
−
|
+
| blink  
 +
| blink
 
| All loads operate normally, while operation frequency for compressor is decreased.
 
| All loads operate normally, while operation frequency for compressor is decreased.
−
| Please refer to malfunction analysis below.
+
| Please refer to the [[:File:Service_Manual_Platinum.pdf|service manual]]
 
|-
 
|-
−
| 18
 
 
| Decrease frequency due to overcurrent
 
| Decrease frequency due to overcurrent
 
| F8
 
| F8
Line 246: Line 226:
 
| Off 3s and blink 8 times  
 
| Off 3s and blink 8 times  
 
|
 
|
−
|  
+
| on 
−
| Off 3s and blink once
+
| on
−
|
+
| off
 +
| on
 
| All loads operate normally, while operation frequency for compressor is decreased.
 
| All loads operate normally, while operation frequency for compressor is decreased.
 
| The input supply voltage is too low; System pressure is too high and overload;
 
| The input supply voltage is too low; System pressure is too high and overload;
 
|-
 
|-
−
| 19
 
 
| Decrease frequency due to high air discharge
 
| Decrease frequency due to high air discharge
 
| F9
 
| F9
Line 258: Line 238:
 
| Off 3s and blink 9 times
 
| Off 3s and blink 9 times
 
|
 
|
−
|
+
| on
−
| Off 3s and blink twice
+
| on
−
|
+
| off
 +
| off
 
| All loads operate normally, while operation frequency for compressor is decreased.
 
| All loads operate normally, while operation frequency for compressor is decreased.
 
|  
 
|  
Line 267: Line 248:
 
* Malfunction of electric expansion valve (EKV);
 
* Malfunction of electric expansion valve (EKV);
 
|-
 
|-
−
| 20
 
 
| Limit/decrease frequency due to antifreezing  
 
| Limit/decrease frequency due to antifreezing  
 
| FH
 
| FH
 
|
 
|
−
| Off 3s and blink twice
 
−
| Off 3s and blink twice
 
 
|
 
|
−
| Off 3s and blink 4 times
 
 
|
 
|
 +
| on
 +
| on
 +
| on
 +
| off
 
| All loads operate normally, while operation frequency for compressor is decreased.
 
| All loads operate normally, while operation frequency for compressor is decreased.
 
| Poor air-return in indoor unit or fan speed is too low
 
| Poor air-return in indoor unit or fan speed is too low
 
|-
 
|-
−
| 21
 
 
| Voltage for DC bus-bar is too high
 
| Voltage for DC bus-bar is too high
 
| PH
 
| PH
Line 285: Line 265:
 
| Off 3s and blink 11 times
 
| Off 3s and blink 11 times
 
|  
 
|  
−
| Off 3s and blink 13 times
+
| off
−
|
+
| on
−
|
+
| off
 +
| blink
 
| During cooling and drying operation, compressor and outdoor fan stop while indoor fan operates. During heating, all loads stop.
 
| During cooling and drying operation, compressor and outdoor fan stop while indoor fan operates. During heating, all loads stop.
 
|
 
|
Line 293: Line 274:
 
* If the AC input is normal, measure the voltage of electrolytic capacitor C on control panel (AP1), if it is normal, there's a malfunction on the circuit. Please replace the control panel (AP1).
 
* If the AC input is normal, measure the voltage of electrolytic capacitor C on control panel (AP1), if it is normal, there's a malfunction on the circuit. Please replace the control panel (AP1).
 
|-
 
|-
−
| 22
 
 
| Voltage of DC bus-bar is too low
 
| Voltage of DC bus-bar is too low
 
| PL
 
| PL
Line 299: Line 279:
 
|
 
|
 
| Off 3s and blink 21 times
 
| Off 3s and blink 21 times
−
| Off 3s and blink 12 times
+
| off 
−
|
+
| on
−
|  
+
| on
 +
| on
 
| During cooling and drying operation, compressor and outdoor fan stop while indoor fan operates. During heating, all loads stop.
 
| During cooling and drying operation, compressor and outdoor fan stop while indoor fan operates. During heating, all loads stop.
 
|  
 
|  
Line 307: Line 288:
 
* If the AC input is normal, measure the voltage of electrolytic capacitor C on control panel (AP1), if it is normal, there's a malfunction on the circuit. Please replace the control panel (AP1).
 
* If the AC input is normal, measure the voltage of electrolytic capacitor C on control panel (AP1), if it is normal, there's a malfunction on the circuit. Please replace the control panel (AP1).
 
|-
 
|-
−
| 23
 
−
| Compressor min frequence in test state
 
−
| P0
 
−
|
 
−
|
 
−
|
 
−
|
 
−
|
 
−
|
 
−
|
 
−
| Shown during min. cooling or min. heating test
 
−
|-
 
−
| 24
 
−
| Compressor rated frequence in test state
 
−
| P1
 
−
|
 
−
|
 
−
|
 
−
|
 
−
|
 
−
|
 
−
|
 
−
| Shown during nominal cooling or nominal heating test
 
−
|-
 
−
| 25
 
−
| Compressor max frequence in test state
 
−
| P2
 
−
|
 
−
|
 
−
|
 
−
|
 
−
|
 
−
|
 
−
|
 
−
| Shown during max. cooling or max. heating test
 
−
|-
 
−
| 26
 
−
| Compressor intermediate frequence in test state
 
−
| P3
 
−
|
 
−
|
 
−
|
 
−
|
 
−
|
 
−
|
 
−
|
 
−
| Shown during middle cooling or middle heating test
 
−
|-
 
−
| 27
 
 
| Overcurrent protection of phase current for compressor  
 
| Overcurrent protection of phase current for compressor  
 
| P5
 
| P5
Line 361: Line 293:
 
| Off 3s and blink 15 times
 
| Off 3s and blink 15 times
 
|
 
|
−
|
+
| off 
−
|
+
| blink
−
|
+
| off
 +
| off
 
| During cooling and drying operation, compressor and outdoor fan stop while indoor fan operates. During heating, all loads stop.
 
| During cooling and drying operation, compressor and outdoor fan stop while indoor fan operates. During heating, all loads stop.
−
| Please refer to malfunction analysis below.
+
| Please refer to the [[:File:Service_Manual_Platinum.pdf|service manual]]
 
|-
 
|-
−
| 28
 
 
| Charging malfunction of capacitor  
 
| Charging malfunction of capacitor  
 
| PU
 
| PU
Line 373: Line 305:
 
|
 
|
 
| Off 3s and blink 17 times  
 
| Off 3s and blink 17 times  
−
|
+
| off
−
|
+
| on
−
|
+
| off
 +
| on
 
| During cooling and drying operation, compressor and outdoor fan stop while indoor fan operates. During heating, all loads stop.
 
| During cooling and drying operation, compressor and outdoor fan stop while indoor fan operates. During heating, all loads stop.
−
| Please refer to malfunction analysis below.
+
| Please refer to the [[:File:Service_Manual_Platinum.pdf|service manual]]
 
|-
 
|-
−
| 29
 
 
| Malfunction of module temperature sensor circuit
 
| Malfunction of module temperature sensor circuit
 
| P7
 
| P7
Line 385: Line 317:
 
|
 
|
 
| Off 3s and blink 18 times  
 
| Off 3s and blink 18 times  
−
|
+
| off
−
|
+
| off
−
|
+
| on
 +
| blink
 
| During cooling and drying operation, compressor and outdoor fan stop while indoor fan operates. During heating, all loads stop.
 
| During cooling and drying operation, compressor and outdoor fan stop while indoor fan operates. During heating, all loads stop.
 
| Replace outdoor control panel (AP1)
 
| Replace outdoor control panel (AP1)
 
|-
 
|-
−
| 30
 
 
| Module high temperature protection  
 
| Module high temperature protection  
 
| P8
 
| P8
Line 397: Line 329:
 
|
 
|
 
| Off 3s and blink 19 times  
 
| Off 3s and blink 19 times  
−
|
+
| on
−
|
+
| off
−
|
+
| blink
 +
| on
 
| During cooling and drying operation, compressor and outdoor fan stop while indoor fan operates. During heating, all loads stop.
 
| During cooling and drying operation, compressor and outdoor fan stop while indoor fan operates. During heating, all loads stop.
 
| After the complete unit id de-energized for 20mins, check whether the thermal grease on IPM module of outdoor control panel AP1 is sufficient and whether the radiator is inserted tightly. If it is no use, please replace control panel AP1.
 
| After the complete unit id de-energized for 20mins, check whether the thermal grease on IPM module of outdoor control panel AP1 is sufficient and whether the radiator is inserted tightly. If it is no use, please replace control panel AP1.
 
|-
 
|-
−
| 31
 
 
| Decrease frequency due to high temperature resistant during heating operation
 
| Decrease frequency due to high temperature resistant during heating operation
 
| H0
 
| H0
Line 409: Line 341:
 
|
 
|
 
| Off 3s and blink 10 times
 
| Off 3s and blink 10 times
−
|
+
| on
−
|
+
| off
−
|
+
| blink
 +
| blink
 
| All loads operate normally, while operation frequency for compressor is decreased.
 
| All loads operate normally, while operation frequency for compressor is decreased.
 
| Refer to the malfunction analysis (overload, high temperature resistant)
 
| Refer to the malfunction analysis (overload, high temperature resistant)
 
|-
 
|-
−
| 32
 
 
| Static dedusting protection
 
| Static dedusting protection
 
| H2
 
| H2
Line 421: Line 353:
 
|
 
|
 
| Off 3s and blink twice
 
| Off 3s and blink twice
 +
|
 
|
 
|
 
|
 
|
Line 427: Line 360:
 
|
 
|
 
|-
 
|-
−
| 33
 
 
| Overload protection for compressor
 
| Overload protection for compressor
 
| H3
 
| H3
Line 433: Line 365:
 
|
 
|
 
| Off 3s and blink 3 times  
 
| Off 3s and blink 3 times  
−
| Off 3s and blink 8 times
+
| off 
−
|
+
| blink  
−
|
+
| blink
 +
| off
 
| During cooling and drying operation, compressor and outdoor fan stop while indoor fan operates. During heating, all loads stop.
 
| During cooling and drying operation, compressor and outdoor fan stop while indoor fan operates. During heating, all loads stop.
 
|  
 
|  
 
* Wiring terminal OVC-COMP is loosened. In normal state the resistance for this terminal should be less than 1ohm;
 
* Wiring terminal OVC-COMP is loosened. In normal state the resistance for this terminal should be less than 1ohm;
−
* Please refer to malfunction analysis below.
+
* Please refer to the [[:File:Service_Manual_Platinum.pdf|service manual]]
 
|-
 
|-
−
| 34
 
 
| System is abnormal
 
| System is abnormal
 
| H4
 
| H4
Line 447: Line 379:
 
|
 
|
 
| Off 3s and blink 4 times
 
| Off 3s and blink 4 times
−
| Off 3s and blink 6 times
+
|  
 +
|
 
|
 
|
 
|
 
|
 
| During cooling and drying operation, compressor and outdoor fan stop while indoor fan operates. During heating, all loads stop.
 
| During cooling and drying operation, compressor and outdoor fan stop while indoor fan operates. During heating, all loads stop.
−
| Please refer to malfunction analysis below.
+
| Please refer to the [[:File:Service_Manual_Platinum.pdf|service manual]]
 
|-
 
|-
−
| 35
 
 
| IPM protection
 
| IPM protection
 
| H5
 
| H5
Line 459: Line 391:
 
|
 
|
 
| Off 3s and blink 5 times  
 
| Off 3s and blink 5 times  
−
| Off 3s and blink 4 times
+
| on
−
|  
+
| off
−
|
+
| on
 +
| on
 
| During cooling and drying operation, compressor and outdoor fan stop while indoor fan operates. During heating, all loads stop.
 
| During cooling and drying operation, compressor and outdoor fan stop while indoor fan operates. During heating, all loads stop.
−
| Please refer to malfunction analysis below.
+
| Please refer to the [[:File:Service_Manual_Platinum.pdf|service manual]]
 
|-
 
|-
−
| 36
 
−
| Module temperature is too high
 
−
| H5
 
−
|
 
−
|
 
−
| Off 3s and blink 5 times
 
−
| Off 3s and blink 10 times
 
−
|
 
−
|
 
−
|
 
−
|
 
−
|-
 
−
| 37
 
 
| Internal motor (fan motor) does not operate
 
| Internal motor (fan motor) does not operate
 
| H6
 
| H6
 
| Off 3s and blink 11 times
 
| Off 3s and blink 11 times
 +
|
 
|
 
|
 
|
 
|
Line 494: Line 415:
 
* Malfunction of main board rev detecting diificult;
 
* Malfunction of main board rev detecting diificult;
 
|-
 
|-
−
| 38
 
 
| Desynchronizing of compressor  
 
| Desynchronizing of compressor  
 
| H7  
 
| H7  
Line 500: Line 420:
 
|
 
|
 
| Off 3s and blink 7 times  
 
| Off 3s and blink 7 times  
−
|
+
| off
−
|
+
| blink
−
|
+
| on
 +
| blink
 
| During cooling and drying operation, compressor and outdoor fan stop while indoor fan operates. During heating, all loads stop.
 
| During cooling and drying operation, compressor and outdoor fan stop while indoor fan operates. During heating, all loads stop.
−
| Please refer to malfunction analysis below.
+
| Please refer to the [[:File:Service_Manual_Platinum.pdf|service manual]]
 
|-
 
|-
−
| 39
 
 
| PFC protection
 
| PFC protection
 
| HC  
 
| HC  
Line 512: Line 432:
 
|  
 
|  
 
| Off 3s and blink 6 times
 
| Off 3s and blink 6 times
−
| Off 3s and blink 14 times
+
| off
−
|
+
| on
−
|
+
| blink
 +
| blink
 
| During cooling and drying operation, compressor and outdoor fan stop while indoor fan operates. During heating, all loads stop.
 
| During cooling and drying operation, compressor and outdoor fan stop while indoor fan operates. During heating, all loads stop.
−
| Please refer to malfunction analysis below.
+
| Please refer to the [[:File:Service_Manual_Platinum.pdf|service manual]]
 
|-
 
|-
−
| 40
 
 
| Outdoor DC fan motor malfunction
 
| Outdoor DC fan motor malfunction
 
| L3  
 
| L3  
−
| Off 3s and blink 23 times
+
|  
 
|  
 
|  
 
|
 
|
−
|
+
| on
−
| Off 3s and blink 14 times
+
| off
−
|
+
| off
 +
| off
 
| Outdoor DC fan motor malfunction lead to compressor stop operation
 
| Outdoor DC fan motor malfunction lead to compressor stop operation
 
| DC fan motor malfunction or system blocked or the connector lossened
 
| DC fan motor malfunction or system blocked or the connector lossened
 
|-
 
|-
−
| 41
 
−
| Power protection
 
−
| L9
 
−
| Off 3s and blink 20 times
 
−
|
 
−
|
 
−
| Off 3s and blink 9 times
 
−
|
 
−
|
 
−
| Compressor stop operation and outdoor fan motor will stop 30s later, 3 minutes later the fan motor and compressor will restart.
 
−
| To protect the electronic components when high power is detected
 
−
|-
 
−
| 42
 
−
| Indoor unit and outdoor unit doesn't match
 
−
| LP
 
−
| Off 3s and blink 19 times
 
−
|
 
−
|
 
−
| Off 3s and blink 16 times
 
−
|
 
−
|
 
−
| Compressor and outdoor fan motor won't work
 
−
| Indoor unit and outdoor unit does not match
 
−
|-
 
−
| 43
 
 
| Failure start-up  
 
| Failure start-up  
 
| LC
 
| LC
Line 560: Line 456:
 
|
 
|
 
| Off 3s and blink 11 times  
 
| Off 3s and blink 11 times  
−
|
+
| off
−
|
+
| blink
−
|
+
| off
 +
| blink
 
| During cooling and drying operation, compressor and outdoor fan stop while indoor fan operates. During heating, all loads stop.
 
| During cooling and drying operation, compressor and outdoor fan stop while indoor fan operates. During heating, all loads stop.
−
| Please refer to malfunction analysis below.
+
| Please refer to the [[:File:Service_Manual_Platinum.pdf|service manual]]
 
|-
 
|-
−
| 44
 
 
| Malfunction of phase current detection circuit for compressor  
 
| Malfunction of phase current detection circuit for compressor  
 
| U1
 
| U1
Line 572: Line 468:
 
|
 
|
 
| Off 3s and blink 13 times
 
| Off 3s and blink 13 times
−
|
+
| off
−
|
+
| blink
−
|
+
| on
 +
| off
 
| During cooling and drying operation, compressor and outdoor fan stop while indoor fan operates. During heating, all loads stop.
 
| During cooling and drying operation, compressor and outdoor fan stop while indoor fan operates. During heating, all loads stop.
 
| Replace outdoor control panel (AP1)
 
| Replace outdoor control panel (AP1)
 
|-
 
|-
−
| 45
 
 
| Malfunction of voltage dropping for DC bus-bar  
 
| Malfunction of voltage dropping for DC bus-bar  
 
| U3  
 
| U3  
Line 584: Line 480:
 
|
 
|
 
| Off 3s and blink 20 times  
 
| Off 3s and blink 20 times  
−
|
+
| off
−
|
+
| on
−
|
+
| on
 +
| on
 
| During cooling and drying operation, compressor and outdoor fan stop while indoor fan operates. During heating, all loads stop.
 
| During cooling and drying operation, compressor and outdoor fan stop while indoor fan operates. During heating, all loads stop.
 
| Supply voltage is unstable
 
| Supply voltage is unstable
 
|-
 
|-
−
| 46
 
 
| Malfunction of complete units current detection
 
| Malfunction of complete units current detection
 
| U5
 
| U5
Line 596: Line 492:
 
| Off 3s and blink 13 times  
 
| Off 3s and blink 13 times  
 
|
 
|
−
|
+
| off
−
|
+
| on
−
|
+
| blink
 +
| on
 
| During cooling and drying operation, compressor and outdoor fan stop while indoor fan operates. During heating, all loads stop.
 
| During cooling and drying operation, compressor and outdoor fan stop while indoor fan operates. During heating, all loads stop.
 
| There is a circuit malfunction on the outdoor unit's control panel (AP1). Please replace the outdoor unit control panel (AP1).
 
| There is a circuit malfunction on the outdoor unit's control panel (AP1). Please replace the outdoor unit control panel (AP1).
 
|-
 
|-
−
| 47
 
 
| The four-way valve is abnormal
 
| The four-way valve is abnormal
 
| U7
 
| U7
 
|  
 
|  
−
| Off 3s and blink 20 times
 
−
|
 
−
|
 
 
|
 
|
 
|
 
|
 +
| on
 +
| off
 +
| blink
 +
| off
 
| If this malfunction occurs during heat operation, the complete unit will stop operation.
 
| If this malfunction occurs during heat operation, the complete unit will stop operation.
 
|  
 
|  
Line 617: Line 514:
 
* 4V is damaged, please replace 4V;
 
* 4V is damaged, please replace 4V;
 
|-
 
|-
−
| 48
 
 
| Zero-crossing malfunction of outdoor unit
 
| Zero-crossing malfunction of outdoor unit
 
| U9
 
| U9
−
| Off 3s and blink 18 times
+
|  
−
|
 
−
|
 
−
|
 
 
|
 
|
 
|
 
|
 +
| on
 +
| on
 +
| blink
 +
| off
 
| During cooling and drying operation, compressor and outdoor fan stop while indoor fan operates. During heating, all loads stop.
 
| During cooling and drying operation, compressor and outdoor fan stop while indoor fan operates. During heating, all loads stop.
 
| Replace outdoor control panel (AP1)
 
| Replace outdoor control panel (AP1)
 
|-
 
|-
−
| 49
+
| Defrosting
−
| Frequency limiting (power)
+
| H1
−
|  
 
 
|
 
|
 
|
 
|
−
|
+
| Off 3s and blink once
−
| Off 3s and blink 13 times
 
−
|
 
−
|
 
−
|
 
−
|
 
−
|-
 
−
| 50
 
−
| Compressor is open-circuited
 
 
|  
 
|  
−
|
 
−
|
 
−
|
 
−
|
 
−
| Off 3s and blink once
 
−
|
 
−
|
 
−
|
 
−
|-
 
−
| 51
 
−
| The temperature for turning on the unit is reached
 
−
|
 
−
|
 
−
|
 
−
|
 
−
|
 
−
| Off 3s and blink 8 times
 
−
|
 
−
|
 
−
|
 
−
|-
 
−
| 52
 
−
| Frequency limiting (module temperature)
 
−
|
 
−
|
 
−
|
 
−
|
 
−
|
 
−
| Off 3s and blink 11 times
 
−
|
 
−
|
 
−
|
 
−
|-
 
−
| 53
 
−
| Normal communication
 
−
|
 
−
|
 
−
|
 
−
|
 
−
|
 
−
|
 
−
| continously
 
−
|
 
−
|
 
−
|-
 
−
| 54
 
−
| Defrosting
 
 
|  
 
|  
−
|
 
−
|
 
−
| Off 3s and blink once
 
−
| Off 3s and blink twice
 
 
|
 
|
 
|
 
|

Latest revision as of 16:30, 18 November 2013

Malfunction Name Display Method of Indoor Unit Display Method of Outdoor Unit A/C Status Possible Causes
Dual-8 Code Display Indicator Display Indicator Display
Running LED Cooling LED Heating LED D40/D5 D41/D6 D42/D16 D43/D30
High pressure protection of system E1 Off 3s and blink once off blink blink blink During cooling and drying operation, all loads except the indoor fan stop operation. During heating operation, the entire unit stops.
  • Refrigerant was superabundant;
  • Poor heat exchange (including filth blockage of heat exchanger and bad radiating environment);
  • Ambient temperature is too high.
Antifreezing protection E2 Off 3s and blink twice on off on off During cooling and drying operation, compressor and outdoor fan stop while indoor fan operates.
  • Poor air-return in indoor unit;
  • Fan speed is abnormal;
  • Evaporator is dirty;
High discharge temperature protection of compressor E4 Off 3s and blink 4 times on off on blink During cooling and drying operation, compressor and outdoor fan stop while indoor fan operates. During heating, all loads stop. Please refer to the service manual
Overcurrent protection E5 Off 3s and blink 5 times off on blink off During cooling and drying operation, compressor and outdoor fan stop while indoor fan operates. During heating, all loads stop.
  • Supply voltage is unstable;
  • Supply voltage is too low and load is too high;
  • Evaporator is dirty;
Communication malfunction E6 Off 3s and blink 6 times off off off blink During cooling and drying operation, compressor and outdoor fan stop while indoor fan operates. During heating, all loads stop. Please refer to the service manual
High temperature resistant protection E8 Off 3s and blink 8 times on off on on During cooling and drying operation, compressor and outdoor fan stop while indoor fan operates. During heating, all loads stop. Please refer to the service manual
EEPROM malfunction EE Off 3s and blink 15 times off off off on During cooling and drying operation, compressor and outdoor fan stop while indoor fan operates. During heating, all loads stop. Replace outdoor control panel AP1
Limit/decrease frequency due to high temperature of module EU on on on blink All loads operate normally, while operation frequency for compressor is decreased. Discharging after the complete unit is de-energized for 20mins, check whether the thermal grease on IPM module of outdoor control panel AP1 is sufficient and whether the radiator is inserted tightly. If it is no use, please replace control panel AP1.
Malfunction protection of jumper cap C5 Off 3s and blink 15 times Indoor unit does not respond to the wireless remote commands.
  • No jumper cap inserted to main board;
  • Jumper cap is inserted incorrectly;
  • Jumper cap is damaged;
  • Abnormal detecting circuit of main board;
Indoor ambient temperature sensor is open/short circuited F1 Off 3s and blink once During cooling and drying operation, indoor unit operates while other loads will stop. During heating operation the complete unit will stop operation.
  • Loosening or bad contact of indoor ambient temp. sensor and main board terminal;
  • Components in main board fell down leading to short circuit;
  • Indoor ambient temp. sensor damaged;
  • Main board damaged;
Indoor evaporator temperature sensor is open/short circuited F2 Off 3s and blink twice AC stops operation once it reaches the set temperature. Cooling/drying: internal fan motor stops operation while other loads stop operation. Heating: AC stops operation.
  • Loosening or bad contact of indoor evaporator temp. sensor and main board terminal;
  • Components in main board fell down leading to short circuit;
  • Indoor evaporator temp. sensor damaged;
  • Main board damaged;
Outdoor ambient temperature sensor is open/short circuited F3 Off 3s and blink 3 times off off blink on During cooling and drying operation, compressor and outdoor fan stop while indoor fan operates. During heating, all loads stop. Outdoor temperature sensor hasn't been connected well or is damaged.
Outdoor condenser temperature sensor is open/short circuited F4 Off 3s and blink 4 times off off blink off During cooling and drying operation, compressor and outdoor fan stop while indoor fan operates. During heating, all loads stop. Outdoor temperature sensor hasn't been connected well or is damaged.
Outdoor discharge temperature sensor is open/short circuited F5 Off 3s and blink 5 times off off blink blink During cooling and drying operation, compressor will stop after operating for about 3 mins while indoor fan will operate. During heating operation, the complete unit will stop after operating for about 3 minutes.
  • Outdoor temperature sensor hasn't been connected well or is damaged;
  • The head of temperature sensor hasn't been inserted in to the copper tube;
Limit/decrease frequency due to overload F6 Off 3s and blink 6 times on off blink blink All loads operate normally, while operation frequency for compressor is decreased. Please refer to the service manual
Decrease frequency due to overcurrent F8 Off 3s and blink 8 times on on off on All loads operate normally, while operation frequency for compressor is decreased. The input supply voltage is too low; System pressure is too high and overload;
Decrease frequency due to high air discharge F9 Off 3s and blink 9 times on on off off All loads operate normally, while operation frequency for compressor is decreased.
  • Overload or temperature is too high;
  • Refrigerant is insufficient;
  • Malfunction of electric expansion valve (EKV);
Limit/decrease frequency due to antifreezing FH on on on off All loads operate normally, while operation frequency for compressor is decreased. Poor air-return in indoor unit or fan speed is too low
Voltage for DC bus-bar is too high PH Off 3s and blink 11 times off on off blink During cooling and drying operation, compressor and outdoor fan stop while indoor fan operates. During heating, all loads stop.
  • Measure the voltage of position L and N on the wiring board (XT). If the voltage is higher than 265V AC, turn on the units after the supply voltage is increased to the normal range.
  • If the AC input is normal, measure the voltage of electrolytic capacitor C on control panel (AP1), if it is normal, there's a malfunction on the circuit. Please replace the control panel (AP1).
Voltage of DC bus-bar is too low PL Off 3s and blink 21 times off on on on During cooling and drying operation, compressor and outdoor fan stop while indoor fan operates. During heating, all loads stop.
  • Measure the voltage of position L and N on the wiring board (XT). If the voltage is higher than 150V AC, turn on the units after the supply voltage is increased to the normal range.
  • If the AC input is normal, measure the voltage of electrolytic capacitor C on control panel (AP1), if it is normal, there's a malfunction on the circuit. Please replace the control panel (AP1).
Overcurrent protection of phase current for compressor P5 Off 3s and blink 15 times off blink off off During cooling and drying operation, compressor and outdoor fan stop while indoor fan operates. During heating, all loads stop. Please refer to the service manual
Charging malfunction of capacitor PU Off 3s and blink 17 times off on off on During cooling and drying operation, compressor and outdoor fan stop while indoor fan operates. During heating, all loads stop. Please refer to the service manual
Malfunction of module temperature sensor circuit P7 Off 3s and blink 18 times off off on blink During cooling and drying operation, compressor and outdoor fan stop while indoor fan operates. During heating, all loads stop. Replace outdoor control panel (AP1)
Module high temperature protection P8 Off 3s and blink 19 times on off blink on During cooling and drying operation, compressor and outdoor fan stop while indoor fan operates. During heating, all loads stop. After the complete unit id de-energized for 20mins, check whether the thermal grease on IPM module of outdoor control panel AP1 is sufficient and whether the radiator is inserted tightly. If it is no use, please replace control panel AP1.
Decrease frequency due to high temperature resistant during heating operation H0 Off 3s and blink 10 times on off blink blink All loads operate normally, while operation frequency for compressor is decreased. Refer to the malfunction analysis (overload, high temperature resistant)
Static dedusting protection H2 Off 3s and blink twice
Overload protection for compressor H3 Off 3s and blink 3 times off blink blink off During cooling and drying operation, compressor and outdoor fan stop while indoor fan operates. During heating, all loads stop.
  • Wiring terminal OVC-COMP is loosened. In normal state the resistance for this terminal should be less than 1ohm;
  • Please refer to the service manual
System is abnormal H4 Off 3s and blink 4 times During cooling and drying operation, compressor and outdoor fan stop while indoor fan operates. During heating, all loads stop. Please refer to the service manual
IPM protection H5 Off 3s and blink 5 times on off on on During cooling and drying operation, compressor and outdoor fan stop while indoor fan operates. During heating, all loads stop. Please refer to the service manual
Internal motor (fan motor) does not operate H6 Off 3s and blink 11 times Internal fan motor, external fan motor, compressor and electric heater stop operation. Guid louver stops at present location.
  • Bad contact of DC motor feedback terminal;
  • Bad contact of DC motor control end;
  • Fan motor is stalling;
  • Motor malfunction;
  • Malfunction of main board rev detecting diificult;
Desynchronizing of compressor H7 Off 3s and blink 7 times off blink on blink During cooling and drying operation, compressor and outdoor fan stop while indoor fan operates. During heating, all loads stop. Please refer to the service manual
PFC protection HC Off 3s and blink 6 times off on blink blink During cooling and drying operation, compressor and outdoor fan stop while indoor fan operates. During heating, all loads stop. Please refer to the service manual
Outdoor DC fan motor malfunction L3 on off off off Outdoor DC fan motor malfunction lead to compressor stop operation DC fan motor malfunction or system blocked or the connector lossened
Failure start-up LC Off 3s and blink 11 times off blink off blink During cooling and drying operation, compressor and outdoor fan stop while indoor fan operates. During heating, all loads stop. Please refer to the service manual
Malfunction of phase current detection circuit for compressor U1 Off 3s and blink 13 times off blink on off During cooling and drying operation, compressor and outdoor fan stop while indoor fan operates. During heating, all loads stop. Replace outdoor control panel (AP1)
Malfunction of voltage dropping for DC bus-bar U3 Off 3s and blink 20 times off on on on During cooling and drying operation, compressor and outdoor fan stop while indoor fan operates. During heating, all loads stop. Supply voltage is unstable
Malfunction of complete units current detection U5 Off 3s and blink 13 times off on blink on During cooling and drying operation, compressor and outdoor fan stop while indoor fan operates. During heating, all loads stop. There is a circuit malfunction on the outdoor unit's control panel (AP1). Please replace the outdoor unit control panel (AP1).
The four-way valve is abnormal U7 on off blink off If this malfunction occurs during heat operation, the complete unit will stop operation.
  • Supply voltage is lower than AC 175V;
  • Wiring terminal 4V is loosened or broken;
  • 4V is damaged, please replace 4V;
Zero-crossing malfunction of outdoor unit U9 on on blink off During cooling and drying operation, compressor and outdoor fan stop while indoor fan operates. During heating, all loads stop. Replace outdoor control panel (AP1)
Defrosting H1 Off 3s and blink once Defrosting will occur in heating mode. Compressor will operate while indoor fan will stop operation It is in a normal state
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