Daikin Help Please

[hamidp]

Hello everybody

[hamidp]

yesterday I'v had a Daikin aircon R71FJ7V1 and it has C4 error Indoor Malfunction of liquid pipe thermistor but in indoor unit diagram says heat exchanger thermistor but i don,t know is there any different or not and could you tell me what dose it for and why it dosen't work?
many thanks
Hamidp

[Dunger]

HamidP - the C4 error relates to the liquid sensor on the indoor unit heat exchanger. It is used to control the fan speed of the indoor and the EEV openings on the outdoor etc.
The C4 error is generated when the sensor is not recognised by the indoor PC board.
It could be unplugged, the sensor itself faulty or the PC board faulty.
Check the resistance of the thermistor with a multimeter at 20 degreesC the sensor should read approx 25Kohms.
Hope this helps.

[eiffel]

i think you shall be asked the help from the Daikin,because the whole system was made by they.