E1-00 - Outdoor Unit: Pcb Defect - Daikin Altherma 3 H HT ECH2O Service Manual

3.5.34 E1-00 – Outdoor unit: PCB defect
EPRA14~18D + ETSH/X(B)16P30+50E
Daikin Altherma 3 H HT ECH₂O
ESIE22-11A – 2023.06
INFORMATION
If all procedures listed above have been performed and the problem is still present,
contact the helpdesk.
Trigger
Main PCB detects that
EEPROM is abnormal.
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
4
circuit" [ 361].
Possible cause:
▪ Faulty or disturbance of the power supply (power supply MUST be within
range of nominal operating voltage ±4%),
▪ Power drop,
▪ Short circuit.
3 Perform a check of the outdoor unit fan motor. See
4
motor" [ 280].
Possible cause: Faulty outdoor unit fan motor.
4 Perform a check of the compressor. See "4.6 Compressor" [
Possible cause: Faulty compressor or miswiring of the compressor power
supply cable.
Prerequisite: Stop the unit operation via the user interface.
Prerequisite: Turn OFF the respective circuit breaker.
5 Wait until the rectifier voltage is below 10 V DC.
DANGER: RISK OF ELECTROCUTION
Wait for at least 10 minutes after the circuit breaker has been turned OFF, to be sure
the rectifier voltage is below 10 V DC before proceeding.
6 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).
Effect
Unit will stop operating.
"4.16 Main
3 Troubleshooting
|
Reset
Manual reset via user
interface.
Power reset.
4
PCB" [ 226].
"5.1 Electrical
"4.18 Outdoor unit fan
4
161].
Service manual
43