Daikin Altherma 3 M - L1-00 - Outdoor Unit: Main PCB Abnormality; L3-00 - Outdoor Unit: Electrical Box Temperature Rise Problem

2 | Troubleshooting
Service manual
50
EBLA09~16DA + EDLA09~16DA
Daikin Altherma 3 M
ESIE20-06A – 2021.03
To solve the error code
INFORMATION
It is recommended to perform the checks in the listed order.
1 Perform a check of the refrigerant pressure sensor. See "3.19 Refrigerant
pressure sensor"[4244].
Possible cause: Faulty refrigerant pressure sensor.
2 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.
2.3.57 L1-00 – Outdoor unit: Main PCB abnormality
Trigger Effect Reset
Outdoor unit main PCB
detects current/voltage
errors.
Unit will stop operating. Manual reset via user
interface.
Power reset.
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 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.
2.3.58 L3-00 – Outdoor unit: Electrical box temperature rise problem
Trigger Effect Reset
Switch box temperature is
too high.
Unit will stop operating. Manual reset via remote
controller.