ESIE16-02B | Part 2. Troubleshooting 2.2. Error based troubleshooting
4/04/17 | Version 1.1 Page 37
RA R32 Split & multi split M-Series
More info:
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 56 "Replacing thermistors" on page 87
"Main PCB" on page 53 "Replacing main PCB" on page 84
Possible cause Check Corrective action
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