Domestic Hot Water Temperature Increase; Tank Preheating; F3-00 - Discharge Pipe Temperature Stop Abnormality; F6-00 - Stop Due To Cooling High Pressure - Daikin Altherma EBLQ011CAV3 Service Manual

To solve the error code
INFORMATION
It is recommended to perform the checks in the listed
order.
1 Perform a check of the 4‑way valve. See
page 38.
Possible cause: Faulty 4‑way valve.
2 Perform a check of the main PCB. See
page 66.
Possible cause: Faulty main PCB.
3 Perform a check of
"2.23 Thermistors" on page 82.
Possible cause: Faulty room thermistor.
4 Perform a check of the refrigerant circuit. See
circuit" on page 92.
Possible cause:
▪ Stop valve is closed,
▪ Clogged refrigerant circuit,
▪ Refrigerant circuit NOT charged correctly,
▪ Humidity in the refrigerant circuit,
▪ Non-condensables in the refrigerant circuit,
▪ Leaking refrigerant circuit.
INFORMATION
If all procedures listed above have been performed and the
problem is still present, contact the helpdesk.
1.4.35 EC-00 – Domestic hot water temperature
increase
Trigger Effect
Domestic hot water Unit will NOT stop
tank thermistor operating.
measures a
temperature >89°C.
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
"3.3 Water circuit" on page 95.
Possible cause: Increased water temperature due to an
external heat source.
2 Perform a check of the domestic hot water tank thermistor. See
"2.23 Thermistors" on page 82.
Possible cause: Faulty domestic hot water tank thermistor.
3 Perform a check of the hydro PCB. See
page 58.
Possible cause: Faulty hydro PCB.
INFORMATION
If all procedures listed above have been performed and the
problem is still present, contact the helpdesk.
1.4.36 EC-04 – Tank preheating
Trigger Effect
Unit is preheating the Unit will NOT stop
tank. operating.
EBLQ+EDLQ011~016CAV3+W1 + EBLQ+EDLQ011~016CA3V3+W1
+ EK(2)CB07CAV3 + EKMBUHCA3V3+9W1
Daikin Altherma – Monobloc
ESIE18-04 – 2019.02
"2.2 4-way valve" on
"2.17 Main PCB" on
the room thermistor. See
"3.2 Refrigerant
Reset
Automatic reset.
"2.14 Hydro PCB" on
Reset
Automatic reset.
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.
INFORMATION
If all procedures listed above have been performed and the
problem is still present, contact the helpdesk.
1.4.37 F3-00 – Discharge pipe temperature stop
abnormality
Trigger Effect
Discharge pipe Unit will NOT stop
thermistor detects a operating.
too high temperature.
If the error re-occurs
too soon: unit will
stop operating.
To solve the error code
INFORMATION
It is recommended to perform the checks in the listed
order.
1 Perform a check of the refrigerant circuit. See
circuit" on page 92.
Possible cause:
▪ Stop valve is closed,
▪ Clogged refrigerant circuit,
▪ Refrigerant circuit NOT charged correctly,
▪ Humidity in the refrigerant circuit,
▪ Non-condensables in the refrigerant circuit,
▪ Leaking refrigerant circuit.
2 Perform a check of the 4‑way valve. See
page 38.
Possible cause: Faulty 4‑way valve.
3 Perform a check of the expansion valve. See
valve" on page 54.
Possible cause: Faulty expansion valve.
4 Perform a check of the main PCB. See
page 66.
Possible cause: Faulty main PCB.
5 Perform a check of
"2.23 Thermistors" on page 82.
Possible cause: Faulty refrigerant thermistor(s).
INFORMATION
If all procedures listed above have been performed and the
problem is still present, contact the helpdesk.
1.4.38 F6-00 – Stop due to cooling high pressure
Trigger Effect
Outdoor heat Unit will NOT stop
exchanger thermistor operating.
measures
temperature
>60°C~65°C
1 Troubleshooting
Reset
Automatic reset when
temperature drops
normal level.
Manual reset via user
interface.
"3.2 Refrigerant
"2.2 4-way valve" on
"2.11 Expansion
"2.17 Main PCB" on
all refrigerant thermistors.
Reset
Automatic reset when
temperature drops
below 50°C.
Service manual
See
15