H3-00 - High Pressure Switch Defect; H6-00 - Location Detection Sensor Abnormality; H8-00 - Compressor Input Abnormality - Daikin Altherma EBLQ011CAV3 Service Manual

2 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.
1.4.42 H3-00 – High pressure switch defect
Trigger Effect
High pressure switch Unit will stop
is activated when operating.
compressor is off.
To solve the error code
INFORMATION
It is recommended to perform the checks in the listed
order.
1 Perform a check of the high pressure switch. See
pressure switch" on page 57.
Possible cause: Faulty high pressure switch.
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 main PCB. See
page 66.
Possible cause: Faulty main PCB.
4 Perform a check of the inverter PCB. See
PCB" on page 61.
Possible cause: Faulty power module = inverter PCB.
5 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.
1.4.43 H6-00 – Location detection sensor
abnormality
Trigger Effect
Compressor fails to Unit will NOT stop
start within operating.
15 seconds after the
compressor run
command signal is
If the error re-occurs
sent.
within 8 minutes: unit
will stop operating.
EBLQ+EDLQ011~016CAV3+W1 + EBLQ+EDLQ011~016CA3V3+W1
+ EK(2)CB07CAV3 + EKMBUHCA3V3+9W1
Daikin Altherma – Monobloc
ESIE18-04 – 2019.02
To solve the error code
"2.14 Hydro PCB" on
1 Perform a check of the compressor. See
2 Perform a check of the main PCB. See
Reset
Manual reset via user
interface.
3 Perform a check of the inverter PCB. See
4 Perform a check of the refrigerant circuit. See
"2.13 High
"3.2 Refrigerant
5 Check if the power supply is conform with the regulations. See
"2.17 Main PCB" on
"2.15 Inverter
1.4.44
Trigger
DC voltage or current
sensor abnormality
based on the
compressor running
frequency and the
input current.
To solve the error code
1 Perform a check of the main PCB. See
Reset
Automatic reset after
2 Perform a check of the inverter PCB. See
a continuous
operation of
10 minutes.
Manual reset via user
3 Perform a check of the compressor. See
interface.
4 Perform a check of the reactor. See
INFORMATION
It is recommended to perform the checks in the listed
order.
page 50.
Possible cause: Faulty compressor.
page 66.
Possible cause: Faulty main PCB.
PCB" on page 61.
Possible cause: Faulty power module = inverter PCB.
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.
"3.1 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.
H8-00 – Compressor input abnormality
Effect
Unit will NOT stop
operating.
If the error re-occurs
too soon: unit will
stop operating.
INFORMATION
It is recommended to perform the checks in the listed
order.
page 66.
Possible cause: Faulty main PCB.
PCB" on page 61.
Possible cause: Faulty power module = inverter PCB.
page 50.
Possible cause: Faulty compressor.
page 78.
1 Troubleshooting
"2.8 Compressor" on
"2.17 Main PCB" on
"2.15 Inverter
"3.2 Refrigerant
Reset
Automatic reset when
compressor runs
normally for
60 minutes.
Manual reset via user
interface.
"2.17 Main PCB" on
"2.15 Inverter
"2.8 Compressor" on
"2.20 Reactor" on
Service manual
17