Abnormal High Pressure; H0-00 - Current Sensor Abnormality; H1-00 - Option Thermistor Abnormality - Daikin Altherma EBLQ011CAV3 Service Manual

1 Troubleshooting
To solve the error code
INFORMATION
It is recommended to perform the checks in the listed
order.
1 Clean the outdoor heat exchanger. See
page 99.
Possible cause: Dirty outdoor heat exchanger.
2 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.
3 Perform a check of the heat exchanger thermistor. See
"2.23 Thermistors" on page 82.
Possible cause: Faulty heat exchanger thermistor.
4 Perform a check of the expansion valve. See
valve" on page 54.
Possible cause: Faulty expansion valve.
5 Perform a check of the main PCB. See
page 66.
Possible cause: Faulty main PCB.
6 Perform a check of the outdoor unit fan motor. See
"2.18 Outdoor unit fan motor" on
Possible cause: Faulty outdoor unit fan motor.
INFORMATION
If all procedures listed above have been performed and the
problem is still present, contact the helpdesk.
1.4.39 FA-00 – Abnormal high pressure
Trigger Effect
Outdoor heat Unit will NOT stop
exchanger thermistor operating.
measures
temperature
>60°C~65°C
To solve the error code
INFORMATION
It is recommended to perform the checks in the listed
order.
1 Clean the outdoor heat exchanger. See
page 99.
Possible cause: Dirty outdoor heat exchanger.
2 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.
3 Perform a check of the heat exchanger thermistor. See
"2.23 Thermistors" on page 82.
Service manual
16
"4 Maintenance" on
"3.2 Refrigerant
"2.11 Expansion
"2.17 Main PCB" on
page 73.
Reset
Automatic reset when
temperature drops
below 50°C.
"4 Maintenance" on
"3.2 Refrigerant
Possible cause: Faulty heat exchanger thermistor.
4 Perform a check of the expansion valve. See
valve" on page 54.
Possible cause: Faulty expansion valve.
5 Perform a check of the main PCB. See
page 66.
Possible cause: Faulty main PCB.
6 Perform a check of the outdoor unit fan motor. See
"2.18 Outdoor unit fan motor" on
Possible cause: Faulty outdoor unit fan motor.
INFORMATION
If all procedures listed above have been performed and the
problem is still present, contact the helpdesk.
1.4.40 H0-00 – Current sensor abnormality
Trigger Effect
Compressor voltage Unit will stop
(DC) is out of range operating.
before start‑up.
To solve the error code
INFORMATION
It is recommended to perform the checks in the listed
order.
1 Perform a check of the main PCB. See
page 66.
Possible cause: Faulty main PCB.
2 Perform a check of the inverter PCB. See
PCB" on page 61.
Possible cause: Faulty power module = inverter PCB.
3 Check if the power supply is conform with the regulations. See
"3.1 Power supply" on page 91.
Possible cause:
▪ Faulty or disturbance of the power supply (imbalance
>10%),
▪ Power drop,
▪ Short circuit.
INFORMATION
If all procedures listed above have been performed and the
problem is still present, contact the helpdesk.
1.4.41 H1-00 – Option thermistor abnormality
Trigger Effect
Optional external Unit will NOT stop
indoor or outdoor operating.
ambient thermistor
input is out of range.
To solve the error code
INFORMATION
It is recommended to perform the checks in the listed
order.
1 Perform a check of the external indoor or outdoor ambient
thermistor. See "2.23 Thermistors" on
Possible cause: Faulty external indoor or outdoor ambient
thermistor.
EBLQ+EDLQ011~016CAV3+W1 + EBLQ+EDLQ011~016CA3V3+W1
+ EK(2)CB07CAV3 + EKMBUHCA3V3+9W1
"2.11 Expansion
"2.17 Main PCB" on
page 73.
Reset
Manual reset via user
interface.
"2.17 Main PCB" on
"2.15 Inverter
Reset
Automatic reset when
input is in range.
page 82.
Daikin Altherma – Monobloc
ESIE18-04 – 2019.02