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