Koppel Air Conditioner Error Codes

Koppel Super Inverter AC Error Codes;

Error Code	Problem
E0	Indoor unit EEPROM parameter error
E1	Indoor / outdoor units communication error
E2	Zero-crossing signal error
E3	Indoor fan speed has been out of control
E4	Open circuit or short circuit of indoor room temperature T1
E5	Open circuit or short circuit of evaporator coil temperature T2 sensor
EC	Refrigerant Leakage Detection
F1	Open circuit or short circuit of outdoor ambient T4 temperature sensor
F2	Open circuit or short circuit of condenser coil temperature T3 sensor
F3	Open circuit or short circuit of compressor discharge T5 temperature sensor
F4	Outdoor unit EEPROM parameter error
F5	Outdoor fan speed has been out of control
P0	IPM malfuntion of IGBT over-strong current protection
P1	Over voltage or over low voltage protection
P2	High temperature protection of compressor top diagnosis and solution
P4	Inverter compressor drive sensor

EEPROM parameter error diagnosis and solution E0/F4:

Error Signals On The Display

In case of error, the display on the indoor unit shown the following error codes

Error Code: E 1

RUN lamp: flashes once

Description of the trouble: The fault of indoor temperature sensor

Error Code: E 2

RUN lamp: flashes twice

Description of the trouble: The fault of indoor pipe temperature sensor

Error Code: E 6

RUN lamp: flashes 6 times

Description of the trouble: Malfunction of indoor fan motor.

Koppel AC Troubleshooting

Malfunction: The appliance does not operate 

Possible Causes:

1. Power failure/plug pulled out
2. Damaged indoor/outdoor unit fan motor
3. Faulty compressor thermomagnetic circuit breaker
4. Faulty protective device or fuses.
5. Loose connections or plug pulled out
6. It sometimes stops operating to protect the appliance.
7. Voltage higher or lower than the voltage range
8. Active TIMER-ON function
9. Damaged electronic control board

Malfunction:  Strange odour

Possible Causes: Air filter dirty

Malfunction:  Noise of running water

Possible Causes: Back flow of liquid in the refrigerant circulation

Malfunction:  A fine mist comes from the air outlet

Possible Causes: This occurs when the air in the room becomes very cold, for example in the COOLING or DEHUMIDIFYING/DRY modes

Malfunction:  A strange noise can be heard

Possible Causes: This noise is made by the expansion or contraction of the front panel due to variations in temperature and does not indicate a problem.

Malfunction:  Insufficient airflow, either hot or cold

Possible Causes:

• Inappropriate temperature setting..
• Air inlet or outlet of indoor or outdoor unit has been blocked.
• Air filter is blocked.
• Fan speed set at minimum.
• Other sources of heat in the room.
• No refrigerant

Malfunction:  The appliance does not respond to commands