Daikin Altherma EBLQ011CA3V3 - E5-00 - Overheat of Inverter Compressor Motor; E6-00 - Compressor Startup Defect

1 Troubleshooting
Service manual
13
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
INFORMATION
It is recommended to perform the checks in the listed
order.
1 Perform a check of the refrigerant pressure sensor. See
"2.21Refrigerant pressure sensor"on page79.
Possible cause: Faulty refrigerant pressure sensor.
2 Perform a check of the high pressure switch. See "2.13 High
pressure switch"on page57.
Possible cause: Faulty high pressure switch.
3 Perform a check of the main PCB. See "2.17 Main PCB" on
page66.
Possible cause: Faulty main PCB.
4 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.
5 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.
INFORMATION
If all procedures listed above have been performed and the
problem is still present, contact the helpdesk.
1.4.29 E5-00 – Overheat of inverter compressor
motor
Trigger Effect Reset
Compressor overload
is detected.
Unit will NOT stop
operating.
Automatic reset if the
unit runs without
warning for
60seconds.
To solve the error code
INFORMATION
It is recommended to perform the checks in the listed
order.
1 Perform a check of the discharge pipe thermistor. See
"2.23Thermistors"on page82.
Possible cause: Faulty discharge pipe thermistor.
2 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.
3 Perform a check of the compressor. See "2.8 Compressor" on
page50.
Possible cause: Faulty compressor.
4 Perform a check of the expansion valve. See "2.11Expansion
valve"on page54.
Possible cause: Faulty expansion valve.
5 Perform a check of the 4‑way valve. See "2.24-way valve" on
page38.
Possible cause: Faulty 4‑way valve.
6 Perform a check of the main PCB. See "2.17 Main PCB" on
page66.
Possible cause: Faulty main PCB.
7 Perform a check of the inverter PCB. See "2.15 Inverter
PCB"on page61.
Possible cause: Faulty power module = inverter PCB.
8 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.
INFORMATION
If all procedures listed above have been performed and the
problem is still present, contact the helpdesk.
1.4.30 E6-00 – Compressor startup defect
Trigger Effect Reset
The motor rotor does
NOT rotate when the
compressor is
energized.
Unit will NOT stop
operating.
Automatic reset after
a continuous run for
10minutes.
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 discharge pipe thermistor. See
"2.23Thermistors"on page82.
Possible cause: Faulty discharge pipe thermistor.
2 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.
3 Perform a check of the compressor. See "2.8 Compressor" on
page50.
Possible cause: Faulty compressor.
4 Perform a check of the main PCB. See "2.17 Main PCB" on
page66.
Possible cause: Faulty main PCB.
5 Perform a check of the inverter PCB. See "2.15 Inverter
PCB"on page61.
Possible cause: Faulty power module = inverter PCB.
6 Perform a check of the 4‑way valve. See "2.24-way valve" on
page38.
Possible cause: Faulty 4‑way valve.
7 Perform a check of the expansion valve. See "2.11Expansion
valve"on page54.
Possible cause: Faulty expansion valve.