ESIE16-02B | Part 2. Troubleshooting 2.2. Error based troubleshooting
Page 34 4/04/17 | Version 1.1
RA R32 Split & multi split M-Series
2.2.2.19. “L1-00” – Outdoor main PCB abnormality
More info:
2.2.2.20. “L3-00” – Switch box temperature abnormality
Trigger Effect Reset
Outdoor main PCB detects current/volt-
age errors.
Unit will stop operating. Manual reset via user interface.
Power reset via outdoor unit.
Possible cause Check Corrective action
Blown fuse. Check fuse on outdoor main PCB. Replace fuse if blown.
Faulty outdoor unit main PCB. 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.
Adjust the power to the outdoor main
PCB.
Replace outdoor main PCB when HAP
LED is not blinking in regular intervals.
Faulty outdoor inverter PCB. Check outdoor inverter PCB.
Check if the alive led is blinking in regular
intervals.
Check if the correct spare part is installed.
Adjust the power to the outdoor inverter
PCB.
Replace outdoor inverter PCB.
Faulty compressor. Check compressor.
Check connections and wiring of the com-
pressor.
Check expansion valve (liquid back
issue).
Check the refrigerant charge. Refer to the
nameplate for correct charge.
Replace compressor when required.
Investigate reason of breakdown.
Replace expansion valve when required.
Fix possible leak.
Faulty or disturbance of the power supply
(imbalance > 10%). Power drop. Short cir-
cuit.
Check if the power supply is conform with
regulations. No fluctuations in frequency.
Adjust power supply when required.
Power reset via outdoor unit.
Faulty outdoor fan motor. Check the fan motor.
Check fan motor connections and wiring.
Replace fan motor when required.
Adjust wiring when required.
Faulty capacity adapter on outdoor PCB. Check if the correct adapter is installed.
Check if the correct spare part is installed.
Adjust capacity adapter when required.
External factory (e.g. electrical noise).
(cause when error is reset after power
reset, and error happens again after a
while).
Check for source which could cause elec-
trical interference.
Avoid electrical interference.
Check procedures Replacing procedures
"Main PCB" on page 53 "Replacing main PCB" on page 84
"Compressor" on page 47 "Replacing compressor" on page 76
"Electronic expansion valve" on page 49 "Replacing expansion valve body" on page 81
"Fan motor" on page 51 "Replacing DC fan motor assembly" on page 79
Trigger Effect Reset
Switch box temperature is too high when
the compressor is off.
Unit will not stop operating. Automatic reset when temperature drops.
Unit will stop operating. Manual reset via remote controller.
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