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Troubleshooting
Service manual
54
EBLA04~08E + EDLA04~08E
Daikin Altherma 3 M
ESIE22-09 – 2022.05
To solve the error code
INFORMATION
It is recommended to perform the checks in the listed order.
1
Perform a check of the main PCB. See
Possible cause:
Faulty main PCB.
2
Check if the power supply is compliant with the regulations. See
254].
Possible cause:
▪
Faulty or disturbance of the power supply (power supply MUST be within
range of nominal operating voltage ±4%),
▪
Power drop,
▪
Short circuit.
Prerequisite:
Stop the unit operation via the user interface.
Prerequisite:
Turn OFF the respective circuit breaker.
3
Wait until the rectifier voltage is below 10 V DC.
DANGER: RISK OF ELECTROCUTION
Confirm the rectifier voltage is below 10 V DC before proceeding, see
254].
4
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
If all procedures listed above have been performed and the problem is still present,
contact the helpdesk.
3.3.50 H1-00 – External temperature sensor problem
Trigger
Effect
Reset
Optional external indoor
or outdoor ambient
thermistor input is out of
range.
Unit will NOT stop
operating.
Automatic reset when
input is in range.
To solve the error code
INFORMATION
It is recommended to perform the checks in the listed order.
1
Perform a check of the external indoor or outdoor ambient thermistor. See
Possible cause:
Faulty external indoor or outdoor ambient thermistor.
2
Perform a check of the hydro PCB. See
Possible cause:
Faulty hydro PCB.
draft – 31/05/2022 15:53
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