Difference between revisions of "Blue Series 2 Indoor Unit Troubleshooting"
From Technical Support Wiki
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* The outdoor drive board might have failed. | * The outdoor drive board might have failed. | ||
* The compressor might have failed. | * The compressor might have failed. | ||
+ | |- | ||
+ | | 19 | ||
+ | | x | ||
+ | | x | ||
+ | | x | ||
+ | | ○ | ||
+ | | Check Compressor Drive | ||
+ | | | ||
+ | * The outdoor drive board might have failed. | ||
+ | * The compressor might have failed. | ||
+ | * The outdoor control board might have failed. | ||
+ | |- | ||
+ | | 20 | ||
+ | | ★ | ||
+ | | x | ||
+ | | x | ||
+ | | ○ | ||
+ | | Outdoor Fan Motor Locked Rotor Protection | ||
+ | | | ||
+ | * The connection of the outdoor fan motor might be loose. | ||
+ | * There might be something obstructing the outdoor fan motor. | ||
+ | * The fan motor might have failed. | ||
+ | * The outdoor control board might have failed. | ||
+ | |- | ||
+ | | 21 | ||
+ | | | ||
+ | | | ||
+ | | | ||
+ | | | ||
+ | | Outdoor Coil Anti-Overload Protection With Cooling | ||
+ | | | ||
+ | * There might be too much refrigerant. | ||
+ | * The outdoor fan motor might have failed. | ||
+ | * The outdoor fan might be broken. | ||
+ | * The condensor might be dirty. | ||
+ | * The air inlet and outlet of the indoor and outdoor unit is abnormal. | ||
+ | |- | ||
+ | | 22 | ||
+ | | | ||
+ | | | ||
+ | | | ||
+ | | | ||
+ | | Compressor Pre-Heating Process | ||
+ | | | ||
+ | * This is a normal operation mode in cold weather. | ||
+ | |- | ||
+ | | 24 | ||
+ | | | ||
+ | | | ||
+ | | | ||
+ | | | ||
+ | | Check Outdoor Board Chip | ||
+ | | | ||
+ | * The drive board might not be compatible with this unit. | ||
+ | * The compressor might not be compatible with this unit. | ||
+ | |- | ||
+ | | 26 | ||
+ | | | ||
+ | | | ||
+ | | | ||
+ | | | ||
+ | | Protection Against Overheated Outdoor Radiator | ||
+ | | | ||
+ | * Radiator sensors might have failed. | ||
+ | * Detection circuit of the sensor on the control panel might have failed. | ||
+ | |- | ||
+ | | 27 | ||
+ | | | ||
+ | | | ||
+ | | | ||
+ | | | ||
+ | | High Pressure System Protection | ||
+ | | | ||
+ | * The pressure switch might have failed. | ||
+ | * The pressure detection system on the control panel might have failed. | ||
+ | * The measured value of the system pressure might have exceeded the limit. | ||
+ | |- | ||
+ | | 33 | ||
+ | | ○ | ||
+ | | x | ||
+ | | x | ||
+ | | ★ | ||
+ | | Check Indoor Ambient Temperature Sensor | ||
+ | | | ||
+ | * The indoor ambient temperature sensor might be loose. | ||
+ | * The indoor ambient temperature sensor might have failed. | ||
+ | * The indoor ambient control board might have failed. | ||
+ | |- | ||
+ | | 34 | ||
+ | | ○ | ||
+ | | x | ||
+ | | ★ | ||
+ | | x | ||
+ | | Check indoor Coil Temperature Sensor | ||
+ | | | ||
+ | * The indoor coil temperature sensor might be loose. | ||
+ | * The indoor coil temperature sensor might have failed. | ||
+ | * The indoor control board might have failed. | ||
+ | |- | ||
+ | | 36 | ||
+ | | ○ | ||
+ | | ★ | ||
+ | | x | ||
+ | | ★ | ||
+ | | Communication Failure Between Indoor and Outdoor Unit | ||
+ | | | ||
+ | * The communication cable connection might be loose. | ||
+ | * The communication cable might have failed. | ||
+ | * The connection between the filter board and the outdoor control board might be incorrect or loose. | ||
+ | * The connection between the filter board and the terminal might be incorrect or loose. | ||
+ | * The indoor unit control board might have failed. | ||
+ | * The PFC board might have failed. | ||
+ | * The power board might have failed. | ||
+ | * The outdoor unit control board might have failed. | ||
+ | |- | ||
+ | | 38 | ||
+ | | ○ | ||
+ | | ★ | ||
+ | | ★ | ||
+ | | ★ | ||
+ | | Check Indoor EEPROM Failure | ||
+ | | | ||
+ | * The EEPROM chip might be loose. | ||
+ | * The indoor control board might have failed. | ||
+ | |- | ||
+ | | 39 | ||
+ | | ○ | ||
+ | | x | ||
+ | | ★ | ||
+ | | ★ | ||
+ | | Check Indoor Fan Motor | ||
+ | | | ||
+ | * The indoor fan motor might be obstructed. | ||
+ | * The indoor fan motor cord might be loose. | ||
+ | * The indoor fan motor might have failed. | ||
+ | * The indoor control board might have failed. | ||
+ | |- | ||
+ | | 41 | ||
+ | | ★ | ||
+ | | ★ | ||
+ | | ○ | ||
+ | | ★ | ||
+ | | Indoor Board Grounding Failure | ||
+ | | | ||
+ | * Indoor control board has failed. | ||
|- | |- |
Revision as of 13:12, 20 April 2017
Note: ★ - Solid light, ○ - Flashing light, x - Light is off
Error Code | Indoor PCB LED lights | Error Description | Troubleshooting | |||
Running | Timer | Sleep | Power | |||
1 | 2 | 3 | 4 | |||
EA | Display Board and Control Board Communication Error |
| ||||
0 | Normal Operations | |||||
1 | x | ○ | x | x | Outdoor Coil Temperature Sensor Failure |
|
2 | x | ○ | ★ | x | Compressor Exhaust Temperature Sensor Failure |
|
5 | ★ | ○ | x | x | IPM Module Protection |
|
6 | ★ | ○ | x | ★ | AC Voltage Higher or Lower Protection |
|
7 | ★ | ○ | ★ | x | Communication Failure Between Indoor and Outdoor Units |
|
8 | ★ | ○ | ★ | ★ | Current Overload Protection |
|
9 | x | x | ○ | x | Maximum Current Protection |
|
10 | x | x | ○ | ★ | Communication Error Between Outdoor Unit Control Board and Driver Board |
|
11 | x | ★ | ○ | x | Check Outdoor EEPROM |
|
12 | x | ★ | ○ | ★ | Outdoor Ambient Temperature Too Low Protection |
|
13 | ★ | x | ○ | x | Compressor Exhaust Temperature Too High Protection |
|
14 | ★ | x | ○ | ★ | Check Outdoor Ambient Temperature Sensor |
|
15 | ★ | ★ | ○ | x | Compressor Shell Temperature Too High Protection |
|
16 | Anti-Freeze Protection (Cooling) or Overload Protection (Heating) in Indoor Unit |
| ||||
17 | PFC Protection |
| ||||
18 | DC Compressor Start Failure |
| ||||
19 | x | x | x | ○ | Check Compressor Drive |
|
20 | ★ | x | x | ○ | Outdoor Fan Motor Locked Rotor Protection |
|
21 | Outdoor Coil Anti-Overload Protection With Cooling |
| ||||
22 | Compressor Pre-Heating Process |
| ||||
24 | Check Outdoor Board Chip |
| ||||
26 | Protection Against Overheated Outdoor Radiator |
| ||||
27 | High Pressure System Protection |
| ||||
33 | ○ | x | x | ★ | Check Indoor Ambient Temperature Sensor |
|
34 | ○ | x | ★ | x | Check indoor Coil Temperature Sensor |
|
36 | ○ | ★ | x | ★ | Communication Failure Between Indoor and Outdoor Unit |
|
38 | ○ | ★ | ★ | ★ | Check Indoor EEPROM Failure |
|
39 | ○ | x | ★ | ★ | Check Indoor Fan Motor |
|
41 | ★ | ★ | ○ | ★ | Indoor Board Grounding Failure |
|