Daikin EBLA16DA3V3 Service Manual

2 | Troubleshooting
Service manual
58
EBLA09~16DA + EDLA09~16DA
Daikin Altherma 3 M
ESIE20-06A – 2021.03
2.3.69 U1-00 – Malfunction by reverse phase/open phase
Trigger Effect Reset
Outdoor unit main PCB
detects incorrect power
supply.
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 conform with the regulations. See "4.1Electrical
circuit"[4284].
Possible cause:
▪ Faulty or disturbance of the power supply (imbalance >4%),
▪ Power drop,
▪ Short circuit.
2 Perform a check of the noise filter PCB. See "3.15Noise filter PCB"[4194].
Possible cause: Faulty noise filter PCB.
3 Perform a check of the main PCB. See "3.14Main PCB"[4171].
Possible cause: Faulty main PCB.
INFORMATION
If all procedures listed above have been performed and the problem is still present,
contact the helpdesk.
2.3.70 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 conform with the regulations. See "4.1Electrical
circuit"[4284].
Possible cause:
▪ Faulty or disturbance of the power supply (imbalance >4%),
▪ Power drop,
▪ Short circuit.
2 Perform a check of the compressor. See "3.7Compressor"[4134].
Possible cause: Faulty compressor or miswiring of the compressor power
supply cable.
3 Perform a check of the outdoor unit fan motor. See "3.16 Outdoor unit fan
motor"[4217].

Daikin EBLA16DA3V3 Specifications

General

Brand	Daikin
Model	EBLA16DA3V3
Category	Heat Pump
Language	English