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ESIE17-19C
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Part 2. Troubleshooting
2.2. Error based troubleshooting
19/08/19
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Version 1.1
Page 19
Optimized Heating 4
2.2.1. Indoor unit
2.2.1.1. “A0-00” – Detection of refrigerant leak (only for FVXM-F model)
2.2.1.2. “A1-00” – Zero cross detection
More info:
2.2.1.3. “A1-01” – 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.
Trigger
Effect
Reset
Multiple zero-cross is detected in approxi-
mately 10 continuous seconds.
Unit will stop operating.
Manual reset via user interface.
Manual reset via outdoor unit.
Possible cause
Check
Corrective action
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.
Restore the power to the outdoor main
PCB.
Replace outdoor main PCB when HAP
LED is not blinking in regular intervals.
Faulty power module = faulty outdoor
inverter PCB.
Check outdoor inverter PCB.
Check if the HAP LED is blinking in regu-
lar intervals.
Check if the correct spare part is installed.
Restore the power to the outdoor inverter
PCB.
Replace the outdoor inverter PCB when
required.
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.
Check procedures
Replacing procedures
"Replacing main PCB" on page 95
Trigger
Effect
Reset
EEPROM data is not received correctly.
Unit will stop operating.
Power reset via outdoor unit.