P4-00" - Radiating Fin Temperature Sensor Abnormality - Daikin FTXJ-M Service Manual

ESIE16-02K | Part 2. Troubleshooting
2.2.2.23. "P4-00" – Radiating fin temperature sensor abnormality
Trigger
Radiating fin thermistor input voltage is
< 0.04 V or > 4.96 V when power is on.
Possible cause
Faulty radiating fin thermistor.
Faulty outdoor unit PCB in which radiating
fin thermistor is connected.
More info:
Check procedures
"Refrigerant thermistors" on page 58
"Main PCB" on page 57
Page 38
RA R32 Split & multi split M-Series
Effect
Unit will stop operating.
Check
Check radiating fin thermistor.
Check if the HAP LED is blinking in regu-
lar intervals.
Check if the correct spare part is installed.
Check if the outdoor main PCB receives
power.
Replacing procedures
"Replacing thermistors" on page 87
"Replacing main PCB" on page 85
2.2. Error based troubleshooting
Reset
Manual reset via user interface.
Corrective action
Replace radiating fin thermistor when
required.
Restore the power to the outdoor main
PCB.
Replace outdoor main PCB when HAP
LED is not blinking in regular intervals.
31/05/21 | Version 1.1