Daikin EBLA16DA3V3 Service Manual

2 | Troubleshooting
Service manual
25
EBLA09~16DA + EDLA09~16DA
Daikin Altherma 3 M
ESIE20-06A – 2021.03
2.3.20 AJ-03 – Too long domestic hot water heat-up time required
Trigger Effect Reset
Domestic hot water
heat‑up time >6hours.
Unit will switch to space
heating/cooling for
3hours.
Automatic reset after a
domestic hot water
heat‑up time <6hours.
To solve the error code
INFORMATION
It is recommended to perform the checks in the listed order.
1 Perform a check of the backup heater. See "3.3Backup heater"[4104].
Possible cause: Faulty backup heater.
2 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.
3 Perform a check of the hydro PCB. See "3.12Hydro PCB"[4160].
Possible cause: Faulty hydro PCB.
4 Perform a check of the 3-way valve. See "3.13-way valve"[486].
Possible cause: Faulty 3‑way valve.
5 Check the installation for a leaking field installed domestic hot water tap. See
"4.3Water circuit"[4299].
Possible cause: Leaking field installed domestic hot water tap.
6 Check the settings of the backup heater [4‑00]. See "3.21 User
interface"[4266].
Possible cause: Backup heater NOT allowed.
7 Check the software and EEPROM version on the user interface and PCB. See
"3.21User interface"[4266].
Possible cause: Mismatch between the software ID and EEPROM on the PCB
or user interface.
8 Check that the domestic hot water consumption is NOT too large. Lower if
needed.
Possible cause: Domestic hot water consumption too large.
INFORMATION
If all procedures listed above have been performed and the problem is still present,
contact the helpdesk.

Daikin EBLA16DA3V3 Specifications

General

Brand	Daikin
Model	EBLA16DA3V3
Category	Heat Pump
Language	English