Daikin EBLA16DA3V3 Service Manual

2 | Troubleshooting
Service manual
60
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.
2 Check the wiring between the hydro PCB and the main PCB. See "4.1Electrical
circuit"[4284].
Possible cause: Faulty wiring between the hydro PCB and main PCB.
3 Perform a check of the main PCB. See "3.14Main PCB"[4171].
Possible cause: Faulty main PCB.
4 Perform a check of the outdoor unit fan motor. See "3.16 Outdoor unit fan
motor"[4217].
Possible cause: Faulty outdoor unit fan motor.
5 Perform a check of the hydro PCB. See "3.12Hydro PCB"[4160].
Possible cause: Faulty hydro PCB.
Prerequisite: Stop the unit operation via the user interface.
6 Turn OFF the respective circuit breaker.
DANGER: RISK OF ELECTROCUTION
Confirm the rectifier voltage is below 10 V DC before proceeding, see "To prevent
electrical hazards"[4285].
7 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.
2.3.73 U5-00 – User interface communication problem
Trigger Effect Reset
Communication failure
between unit and user
interface.
Unit will stop operating. Automatic reset.
To solve the error code
INFORMATION
It is recommended to perform the checks in the listed order.
1 Perform a check of the hydro PCB. See "3.12Hydro PCB"[4160].
Possible cause: Faulty hydro PCB.

Daikin EBLA16DA3V3 Specifications

General

Brand	Daikin
Model	EBLA16DA3V3
Category	Heat Pump
Language	English