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Troubleshooting
Service manual
53
EBLA09~16DA + EDLA09~16DA
Daikin Altherma 3 M
ESIE20-06A – 2021.03
Possible cause:
▪
Faulty or disturbance of the power supply (imbalance >4%),
▪
Power drop,
▪
Short circuit.
Prerequisite:
Stop the unit operation via the user interface.
8
Turn OFF the respective circuit breaker.
DANGER: RISK OF ELECTROCUTION
Confirm the rectifier voltage is below 10 V DC before proceeding, see
9
Check that the thermal interface grease is applied properly on the (PCB or
refrigerant piping) contact surface of the heat sink. Adjust if needed.
Possible cause:
Thermal interface grease NOT applied properly on the heat
sink.
INFORMATION
Make sure to use thermal interface grease Shin Etsu G-776 (spare part number
2269571).
INFORMATION
If all procedures listed above have been performed and the problem is still present,
contact the helpdesk.
2.3.61 L8-00 – Malfunction triggered by a thermal protection in the main PCB
Trigger
Effect
Reset
When compressor
overload (except during
start-up) is detected.
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
Check that all stop valves of the refrigerant circuit are open. See
Possible cause:
Closed stop valve in the refrigerant circuit.
2
Check if the refrigerant circuit is clogged. See
Possible cause:
Clogged refrigerant circuit.
3
Check if the refrigerant circuit is correctly charged. See
Possible cause:
Refrigerant overcharge or shortage.
4
Check for the presence of non‑condensables and/or humidity in the
refrigerant circuit. See
286].
Possible cause:
Non‑condensables and/or humidity in the refrigerant circuit.
5
Perform a check of the main PCB. See
171].
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