Chigo Air Conditioner Error Codes

AC BrandsChigo
Error CodesSolution
E1Condenser temperature aensor fault
E2Room temp. sensor fault
E3Coil temp. sensor fault
E4Outdoor unit abnormal
E5No feedback signal of indoor fan
E6No over zero signal
E7Outdoor feedback fault
E8Frost protection/over heat protection
F1 Communication fault
F2 Ambient temp. sensor fault
F3Coil pipe temp. sensor of indoor unit fault
F4Fan motor of indoor
F5Module of outdoor unit fault
F6Ambient temp. sensor of outdoor fault
F7Coil pipe temp. sensor of outdoor unit fault
F8Suction temp. sensor of compressor fault
F9Discharge temp. sensor of compressor fault
FAInductor of current or voltage fault
FCCompressor drive fault
FDPhase lacking or phase sequence fault
FEGas return sensor fault
FFOther fault
P1Temp. of evaporator protection
P2Overheat, over current protection of inverter module
P3Over current protection
P4Discharge temp. of compressor protection
P5Over heat of compressor top protection
P6Suction temp. of compressor protection
P7Low or high voltage protection
P8Low presser of gas return protection
P9High pressure of discharge protection
PAHigh temp. of condenser protection
PCHigh temp. of outdoor ambient protection
PFOther protection
DFDefrost 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
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.

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