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| | |} | | |} |
| − | == Error Codes ==
| |
| − | {| class="wikitable"
| |
| − | ! Code
| |
| − | ! Error Name
| |
| − | ! Description/Troubleshooting
| |
| − | |-
| |
| − | | DF
| |
| − | | Defrost
| |
| − | | Currently in defrost mode. Will return to normal operations when defrost is finished.
| |
| − | |-
| |
| − | | E2
| |
| − | | Room Temp Sensor Fault
| |
| − | |
| |
| − | * Check whether the resistance of the sensor is normal. If it is abnormal the sensor should be replaced.
| |
| − | * Check whether there is a short circuit or open circuit in the wire of the sensor, and wether the plug is connected correctly.
| |
| − | * After checking for the above conditions and finding nothing, it check the electric control board.
| |
| − | |-
| |
| − | | E3
| |
| − | | Coil Temp. Sensor Fault
| |
| − | |
| |
| − | * Check whether the resistance of the sensor is normal. If it is abnormal the sensor should be replaced.
| |
| − | * Check whether there is a short circuit or open circuit in the wire of the sensor, and whether the plug is connected correctly.
| |
| − | * After checking for the above conditions and finding nothing, it check the electric control board.
| |
| − | |-
| |
| − | | E4
| |
| − | | Outdoor Unit Abnormal
| |
| − | |
| |
| − | * Check whether the winding resistance and operation current of the compressor are normal.
| |
| − | * Check whether the high and low pressure is normal when the unit is running.
| |
| − | * Check whether the contact of the inserter on the circuit board is well, the coil pipe temperature sensor is well, the key is to check the evaporator temperature detected by the coil pipe temperature sensor has reached the cooling or heating temperature.
| |
| − | * Check whether the surface of the condenser is too dirty. It should be cleaned if it is too dirty.
| |
| − | * Check whether the capacitance of the outdoor motor and the fan is damaged. Replace if damaged.
| |
| − | * If all the of above is normal, then consider replacing the electric control board.
| |
| − | |-
| |
| − | | E5
| |
| − | | No Feedback Signal of Indoor Fan
| |
| − | |
| |
| − | * Check whether two sets of plugs on the outlet end of the motor have loosed from the socket of the electric control board. If it is loose, please insert firmly.
| |
| − | * Check whether the indoor motor is damaged. Replace indoor motor if damaged.
| |
| − | * Check whether the controllable silicon and other components on the electric control board are damaged. Replace controllable silicon or electric control board if damaged.
| |
| − | |-
| |
| − | | E6
| |
| − | | No Over Zero Signal
| |
| − | |
| |
| − | * Check whether the indoor fan is normal.
| |
| − | * Check whether the signal outputting from the integrated chip of the electric control board is normal. If not, please replace electric control board.
| |
| − | |-
| |
| − | | E7
| |
| − | | Outdoor Feedback Fault
| |
| − | |
| |
| − | * Check whether the winding resistance and operation current of the compressor are normal.
| |
| − | * Check whether the high and low pressure is normal when the unit is running.
| |
| − | * Check whether the indoor and outdoor wiring is right; when it is wrong, refer to the wiring diagram.
| |
| − | * Check whether the contact of the inserter on the circuit board and the connection is well. Repair if otherwise.
| |
| − | * Check whether the signal feedback wire is disconnected. Replace or reconnect the feedback signal wire.
| |
| − | * Check whether the supply power is phase-lacking or phase opposition.
| |
| − | * Check whether the AC electromagnetic contractor is well.
| |
| − | |-
| |
| − | | E8
| |
| − | | Frost/Overheat Protection
| |
| − | |
| |
| − | * Check whether the filter of the indoor unit is dirty or blocked. Clean if it is dirty.
| |
| − | * Check whether the indoor fan is running normally, and replace the motor if it is abnormal.
| |
| − | * Check whether indoor pipe temperature sensor is normal, and replace the sensor if it is abnormal.
| |
| − | * Check whether the system pressure is normal, if abnormal, you should check whether there is leakage and fill the refrigerant if need be.
| |
| − | |}
| |
| | | | |
| | == Accessories == | | == Accessories == |
| | *[[Wall Bracket (QBR-19.5)]] | | *[[Wall Bracket (QBR-19.5)]] |
| | *[[Universal Remote (QTH-4000)]] | | *[[Universal Remote (QTH-4000)]] |
