Chigo Air Conditioner Error Codes

Error Codes	Solution
E1	Condenser temperature aensor fault
E2	Room temp. sensor fault
E3	Coil temp. sensor fault
E4	Outdoor unit abnormal
E5	No feedback signal of indoor fan
E6	No over zero signal
E7	Outdoor feedback fault
E8	Frost protection/over heat protection
F1	Communication fault
F2	Ambient temp. sensor fault
F3	Coil pipe temp. sensor of indoor unit fault
F4	Fan motor of indoor
F5	Module of outdoor unit fault
F6	Ambient temp. sensor of outdoor fault
F7	Coil pipe temp. sensor of outdoor unit fault
F8	Suction temp. sensor of compressor fault
F9	Discharge temp. sensor of compressor fault
FA	Inductor of current or voltage fault
FC	Compressor drive fault
FD	Phase lacking or phase sequence fault
FE	Gas return sensor fault
FF	Other fault
P1	Temp. of evaporator protection
P2	Overheat, over current protection of inverter module
P3	Over current protection
P4	Discharge temp. of compressor protection
P5	Over heat of compressor top protection
P6	Suction temp. of compressor protection
P7	Low or high voltage protection
P8	Low presser of gas return protection
P9	High pressure of discharge protection
PA	High temp. of condenser protection
PC	High temp. of outdoor ambient protection
PF	Other protection
DF	Defrost indication

Content:

1. Wall Split AC Series
2. Floor Standing AC Series
3. Portable AC Series
4. Dehumidifer
5. DC Inverter Single Split Series
6. DC Inverter Multi-Split Series
7. VRF System Error Codes

1. Wall Split AC Series Error Codes;

Chigo Wall Split AC Series Error Codes

Code: DF

Failure: Defrost indication

The reason of fault and solution: Normal, the defrost state is removed, it will return to normal condition automatically

Code: E2

Failure: Room temp. sensor fault

The reason of fault and solution:

1. Check whether the resistance of the sensor is normal (the resistance is 5КΩ in the normal temperature 25 ) ℃ , when it is abnormal the sensor should be replaced.
2. Check whether there is short circuit or open circuit in the wire of the sensor, and whether the plug is connected well, whether there is welding off or rosin joint on the electric control board, if there is any, it should be repaired.
3. When the 1 and 2 are both normal, then the components or integrated circuit is damaged, the electric control board should be replaced.

Code: E3

Failure: Coil temp. sensor fault

The reason of fault and solution:

1. Check whether the resistance of the sensor is normal (the resistance is 5КΩ in the normal temperature 25 ) ℃ , when it is abnormal the sensor should be replaced.
2. Check whether there is short circuit or open circuit in the wire of the sensor, and whether the plug is connected well, whether there is welding off or rosin joint on the electric control board, if there is any, it should be repaired.
3. When the 1 and 2 are both normal, then the components or integrated circuit is damaged, the electric control board should be replaced.

Code: E4

Failure: Outdoor unit abnormal

The reason of fault and solution:

1. Check whether the winding resistance and operation current of the compressor are normal.
2. Check whether the high and low pressure is normal when the unit is running.
3. Check (whether the coil pipe sensor is normal) whether the contact of the inserter on the circuit board is well, the coil pipe temperature sensor is fixed, the evaporation of the indoor unit is well, the key is to check the evaporator temperature detected by the coil pipe temperature sensor has reached the cooling or heating temperature.
4. Check whether the surface of the condenser is too dirty, it should be cleaned when it is too dirty.
5. Check whether the capacitance of the outdoor motor and the fan is damaged, it should be replaced when

Code: E5

Failure:  No feedback signal of indoor fan

The reason of fault and solution:

1. Check whether two sets of plugs on the outlet end of the motor have loosed from the socket of the electric control board, insert it firmly when loosing.
2. Check whether the indoor motor has damaged, the motor should be replaced when it is damaged
3. Check whether the controllable silicon and other components on the electric control board have damaged, replace the controllable silicon or electric control board when they are damaged.

Code: E6

Failure: No over zero signal

The reason of fault and solution:

1. Firstly check whether the indoor fan is normal.
2. Check whether the signal outputting from the integrated chip of the electric control board is normal, the electric control board should be replaced when the signal is abnormal.

Code: E7

Failure: Outdoor feedback fault

The reason of fault and solution:

1. Check whether the winding resistance and operation current of the compressor are normal
2. Check whether the high and low pressure is normal when the unit is running.
3. Check whether the indoor and outdoor wiring is right; when it is wrong, connect them again according to the circuit diagram
4. Check whether the contact of the inserter on the circuit board and the connection are well, otherwise repair.
5. Check whether the signal feedback wire is disconnected, replace or connect the feedback signal wire.
6. Check whether the supply power is phase-lacking or phase opposition.
7. Check whether the AC electromagnetic contactor is well.

Code: E8 

Failure: Frost protection/over heat protection

The reason of fault and solution:

1. Check whether the filter of the indoor unit is dirty or blocked, and clean if it is dirty.
2. Check whether the indoor fan is running normally, and replace the motor if it is abnormal.
3. Check whether indoor pipe temperature sensor is normal, and replace the sensor if it is abnormal.
4. Check whether the system pressure is normal, if abnormal, should check whether there is leakage, and fill the refrigerant again.