QuattroClima Air Conditioner Error Codes

Error or task

 

 

Cause and Troubleshooting

 

Switch to defrost mode

 

Flashes 1 time per second

 

DF

 

It is not an error.

 

The service function of the air conditioner, and its settings can not be changed.

 

Prevention of cold air supply

 

Blinks 1 time in 3 seconds

 

The indoor unit fan does not rotate. It is not an error.

 

The service function of the air conditioner, and its settings can not be changed.

 

Room temperature sensor error

 

Blinks 2 times in a row every 4 seconds

 

E2

 

1. Check the resistance of the temperature sensor, if the resistance of the sensor is not correct for the current temperature, replace the sensor.

 

2. Check the sensor connection and continuity

 

3. The control board is faulty, replace the card.

 

Pipe Temperature Sensor Error

 

Blinks 3 times in a row every 5 seconds

 

E3

 

1. Check the resistance of the temperature sensor, if the resistance of the sensor is not correct for the current temperature, replace the sensor.

 

2. Check the sensor connection and continuity

 

3. The control board is faulty, replace the card.

Outdoor unit error

 

Blinks 4 times in a row every 6 seconds

 

E4

 

1. Check compressor current and winding resistance.

 

2. Check the working pressure. In the event of a refrigerant leakage: remove the refrigerant residues and eliminate the leak, brew off the system and fill it with the balance.

 

3. Check the outside pipe sensor.

 

4. Check the condenser of the outdoor unit, it must be clean, free of dust and dirt.

 

5. Check the operation of the outdoor unit fan.

 

6. The control board is faulty, replace the card.

 

Fan control error of indoor unit

 

Blinks 5 times in a row every 7 seconds

 

E5

 

1. Check the connectors of the fan motor connection to the control board.

 

2. Check the indoor fan motor.

 

3. Check the components of the control card for damage. Replace any damaged parts or control board.

 

Internal card error

 

Blinks 6 times in a row every 8 seconds

E6

 

1. Check the indoor unit fan.

 

2. Check the output signal from the control board. Replace the control board.

 

Communication error between blocks

 

Blinks 7 times in a row every 9 seconds

 

E7

 

1. Check the inter-unit electrical connection.

 

2. Check the compressor current and winding resistance.

 

3. Check the working pressure.

 

overheat protection

 

Blinks 8 times in a row every 10 seconds

 

E8

 

1. Check the filters, they must be clean.

 

2. Check the operation of the indoor unit fan.

 

3. Check the inner tube sensor of the indoor unit.

 

4. Check the working pressure. In the event of a refrigerant leakage: remove the refrigerant residues and eliminate the leak, brew off the system and fill it with the balance.