Abnormal Increase Tank Temperature; Tank Preheating - Daikin altherma 3 M Service Manual

2.3.35 EC-00 – Abnormal increase tank temperature
2.3.36 EC-04 – Tank preheating
EBLA09~16DA + EDLA09~16DA
Daikin Altherma 3 M
ESIE20-06A – 2021.03
8 Check if the refrigerant circuit is correctly charged. See
4
circuit" [ 286].
Possible cause: Refrigerant overcharge or shortage.
9 Check for the presence of non‑condensables and/or humidity in the
refrigerant circuit. See
Possible cause: Non‑condensables and/or humidity in the refrigerant circuit.
INFORMATION
If all procedures listed above have been performed and the problem is still present,
contact the helpdesk.
Trigger
Domestic hot water tank
thermistor measures a
too high temperature.
To solve the error code
INFORMATION
It is recommended to perform the checks in the listed order.
1 Check the water circuit for an external heat source. See
4
circuit" [ 299].
Possible cause: Increased water temperature due to an external heat source.
2 Perform a check of the domestic hot water tank thermistor. See
"3.20 Thermistors" [
Possible cause: Faulty domestic hot water tank thermistor.
3 Perform a check of the hydro PCB. See
Possible cause: Faulty hydro PCB.
INFORMATION
If all procedures listed above have been performed and the problem is still present,
contact the helpdesk.
Trigger
Unit is preheating the
tank.
To solve the error code
1 No specific check / repair procedures must be performed to solve this error
code. The water in the heating system and the tank is too cold to perform
defrost operation, so the tank needs to be preheated electrically. Wait until
preheating operation is done.
"4.2 Refrigerant circuit" [
Effect
Unit will NOT stop
operating.
4
248].
"3.12 Hydro
Effect
Unit will NOT stop
operating.
2 Troubleshooting
|
"4.2 Refrigerant
4
286].
Reset
Automatic reset.
"4.3 Water
4
PCB" [ 160].
Reset
Automatic reset.
Service manual
37