3
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Troubleshooting
Service manual
70
EBLA04~08E + EDLA04~08E
Daikin Altherma 3 M
ESIE22-09 – 2022.05
INFORMATION
If all procedures listed above have been performed and the problem is still present,
contact the helpdesk.
3.3.76 U2-00 – Outdoor unit: Defect of power supply voltage
Trigger
Effect
Reset
Power supply abnormality
or instant power failure is
detected.
Unit will stop operating.
Power reset via outdoor
unit.
To solve the error code
INFORMATION
It is recommended to perform the checks in the listed order.
1
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.
2
Perform a check of the compressor. See
Possible cause:
Faulty compressor or miswiring of the compressor power
supply cable.
3
Perform a check of the outdoor unit fan motor. See
Possible cause:
Faulty outdoor unit fan motor.
4
Perform a check of the main PCB. See
Possible cause:
Faulty main PCB.
5
Wait until the compressor restarts.
Possible cause:
▪
Momentary drop of voltage,
▪
Momentary power failure.
INFORMATION
If all procedures listed above have been performed and the problem is still present,
contact the helpdesk.
3.3.77 U3-00 – Under floor heating screed dry out function not completed correctly
Trigger
Effect
Reset
Under floor heating
screed dry-out is
interrupted.
Unit will stop operating.
Manual reset via user
interface.
draft – 31/05/2022 15:53
Содержание EBLA04E V Series
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