2 | Troubleshooting
Service manual
54
EBLA09~16DA + EDLA09~16DA
Daikin Altherma 3 M
ESIE20-06A – 2021.03
Possible cause: Faulty main PCB.
6 Perform a check of the compressor. See "3.7Compressor"[4134].
Possible cause: Faulty compressor or miswiring of the compressor power
supply cable.
INFORMATION
If all procedures listed above have been performed and the problem is still present,
contact the helpdesk.
2.3.62 L9-00 – Prevention of compressor lock
Trigger Effect Reset
Detection of start‑up
failure after time passed
to avoid compressor lock.
Unit will stop operating. Manual reset via user
interface.
To solve the error code
INFORMATION
It is recommended to perform the checks in the listed order.
1 Perform a check of the compressor. See "3.7Compressor"[4134].
Possible cause: Faulty compressor or miswiring of the compressor power
supply cable.
2 Check if the power supply is conform with the regulations. See "4.1Electrical
circuit"[4284].
Possible cause:
▪ Faulty or disturbance of the power supply (imbalance >4%),
▪ Power drop,
▪ Short circuit.
3 Perform a check of the main PCB. See "3.14Main PCB"[4171].
Possible cause: Faulty main PCB.
4 Check that all stop valves of the refrigerant circuit are open. See
"4.2Refrigerant circuit"[4286].
Possible cause: Closed stop valve in the refrigerant circuit.
5 Check if the refrigerant circuit is clogged. See "4.2Refrigerant circuit"[4286].
Possible cause: Clogged refrigerant circuit.
6 Check if the refrigerant circuit is correctly charged. See "4.2 Refrigerant
circuit"[4286].
Possible cause: Refrigerant overcharge or shortage.
7 Check for the presence of non‑condensables and/or humidity in the
refrigerant circuit. See "4.2Refrigerant circuit"[4286].
Possible cause: Non‑condensables and/or humidity in the refrigerant circuit.
INFORMATION
If all procedures listed above have been performed and the problem is still present,
contact the helpdesk.
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