Daikin Altherma EBLQ011CAV3, Руководство по обслуживанию

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1 Troubleshooting
Service manual
14
EBLQ+EDLQ011~W1 + EBLQ+EDLQ011~0W1
+ EK(2)CB EKMB9W1
Daikin Altherma – Monobloc
ESIE18-04 – 2019.02
INFORMATION
If all procedures listed above have been performed and the
problem is still present, contact the helpdesk.
1.4.31 E7-00 – Fan lock abnormality
Trigger Effect Reset
Fan does NOT start
15~30 seconds after
ON signal.
It can occur that the
error code is
triggered when the
fan motor is running
caused by a faulty
rotating sensor
signal.
Unit will stop
operating. Manual reset via user
interface.
To solve the error code
INFORMATION
It is recommended to perform the checks in the listed
order.
1 Perform a check of the outdoor unit fan motor. See
"2.18 Outdoor unit fan motor" on page 73 .
Possible cause: Faulty outdoor unit fan motor.
2 Perform a check of the inverter PCB. See "2.15 Inverter
PCB" on page 61 .
Possible cause: Faulty power module = inverter PCB.
INFORMATION
If all procedures listed above have been performed and the
problem is still present, contact the helpdesk.
1.4.32 E8-00 – Input overvoltage abnormality
Trigger Effect Reset
Compressor running
current exceeds
standard value for
2.5 seconds. Unit will stop
operating. Manual reset via user
interface.
To solve the error code
INFORMATION
It is recommended to perform the checks in the listed
order.
1 Check the outdoor temperature. See "3.5 External factors" on
page 98 .
Possible cause: Outdoor temperature is out of operation
range.
2 Perform a check of the compressor. See "2.8 Compressor" on
page 50 .
Possible cause: Faulty compressor.
3 Perform a check of the inverter PCB. See "2.15 Inverter
PCB" on page 61 .
Possible cause: Faulty power module = inverter PCB.
4 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.
1.4.33 E9-00 – Expansion valve abnormality
Trigger Effect Reset
No continuity of the
expansion valve. Unit will stop
operating. Manual reset via user
interface.
Minimum expansion
valve opening and
suction superheat <4
K and discharge
superheat <5 K. Power reset via
outdoor unit.
To solve the error code
INFORMATION
It is recommended to perform the checks in the listed
order.
1 Perform a check of all refrigerant thermistors. See
"2.23 Thermistors" on page 82 .
Possible cause: Faulty refrigerant thermistor(s).
2 Perform a check of the expansion valve. See "2.11 Expansion
valve" on page 54 .
Possible cause: Faulty expansion valve.
3 Perform a check of the refrigerant circuit. See "3.2 Refrigerant
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.
4 Perform a check of the main PCB. See "2.17 Main PCB" on
page 66 .
Possible cause: Faulty main 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.
1.4.34 EA-00 – Cooling/Heating switch
abnormality
Trigger Effect Reset
Room thermistor is
NOT functioning
within operation
range. Unit will NOT stop
operating. Automatic reset after
a continuous
operation of
10 minutes.
If the error occurs too
soon: unit will stop
operating. Manual reset via user
interface.