ESIE16-02K
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Part 2. Troubleshooting
2.2. Error based troubleshooting
31/05/21
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Version 1.1
Page 21
RA R32 Split & multi split M-Series
2.2.1. Indoor unit
2.2.1.1. “A0-00” – Detection of refrigerant leak (only for FVXM-F model)
More info:
2.2.1.2. “A1-00” – PCB abnormality
Trigger
Effect
Reset
Detect gas leakage (R32 or other gas-
ses).
Outdoor unit stops running.
Indoor fan starts in fan only.
Blinking led indoor.
After 10 min. of no gas detection:
• A0 error disappears (auto reset)
• Unit starts working again
After 10 min. of gas detection:
• A0
error
continuous
• Buzzer will start beeping
• Action:
1. Replace the sensor
2. Clear the error code
Possible cause
Check
Corrective action
Refrigerant leakage.
Check for refrigerant leak indoor unit with
electronic leak detector.
Repair leak and recharge refrigerant if
required.
Clear error code.
No refrigerant leakage.
Check possible other gasses: hairspray,
alcohol, cleaning agent, ... .
Ventilate the room.
Check procedures
Replacing procedures
"How to clear error codes" on page 17
Trigger
Effect
Reset
The system cannot set the internal set-
tings
Unit will stop operating.
Power reset via outdoor unit.
Possible cause
Check
Corrective action
Wrong models interconnected
Check if unit combination is official.
Refer to ‘Combination database’.
Install compatible models.
Faulty wiring.
Check the connection of all terminals by
disconnecting and reconnecting all termi-
nals.
Replace wire harness/terminal when con-
nection is not OK.
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 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.
