Daikin FTXJ-M - A6-00 - Fan Motor Abnormality; C4-00 - Liquid Pipe Thermistor for Heat Exchanger Abnormality

ESIE16-02K | Part 2. Troubleshooting 2.2. Error based troubleshooting
31/05/21 | Version 1.1 Page 23
RA R32 Split & multi split M-Series
2.2.1.5. “A6-00” – Fan motor abnormality
More info:
2.2.1.6. “C4-00” – Liquid pipe thermistor for heat exchanger abnormality
More info:
Trigger Effect Reset
The rotation speed of the fan motor is not
detected while the output voltage to the
fan is at its maximum.
Unit will stop operating. Power reset via outdoor unit.
Possible cause Check Corrective action
Faulty indoor PCB. Check if error still occurs after turning off
power and turning it back on again.
Check if the indoor PCB receives power.
Check if the HAP LED is blinking in regu-
lar intervals.
Check if the correct spare part is installed.
Check the wiring to indoor PCB.
Adjust power to the indoor PCB.
Replace indoor PCB when HAP LED is
not blinking in regular intervals.
Install correct spare part or update indoor
PCB.
Adjust wiring to indoor PCB when
required.
Faulty indoor fan motor. Check the fan motor.
Check fan motor connections and wiring.
Replace fan motor when required.
Adjust wiring when required.
Indoor fan motor locked. Switch of the power.
Turn fan manually.
Replace fan motor when the fan does not
turn smoothly.
Check procedures Replacing procedures
"Fan motor" on page 50
Trigger Effect Reset
Thermistor input is > 4.96 V or < 0.04 V
during compressor operation.
Unit will stop operating. Power reset via outdoor unit.
Possible cause Check Corrective action
Faulty liquid pipe thermistor. Check liquid pipe thermistor. Replace liquid pipe thermistor when
required.
Faulty indoor unit main PCB. Check if error still occurs after turning off
power and turning it back on again.
Check if the indoor PCB receives power.
Check if the HAP LED is blinking in regu-
lar intervals.
Check if the correct spare part is installed.
Check the wiring to indoor PCB.
Adjust the power to the indoor main PCB.
Replace indoor main PCB when HAP LED
is not blinking in regular intervals.
Check procedures Replacing procedures
"Refrigerant thermistors" on page 58