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Troubleshooting
Service manual
21
RXQ25+3 3 3
35AMV1B
Split Sensira R32 BBOP
ESIE21-16 – 2022.02
6
Perform a check of the compressor. See
50].
Possible cause:
Faulty compressor or miswiring of the compressor power
supply cable.
7
Perform a check of the main PCB. See
81].
Possible cause:
Faulty main PCB.
8
Perform a check of the 4‑way valve. See
Possible cause:
Faulty 4‑way valve.
9
Perform a check of the expansion valve. See
Possible cause:
Faulty expansion valve.
INFORMATION
If all procedures listed above have been performed and the problem is still present,
contact the helpdesk.
2.5.9 E7-00 – Outdoor unit: Malfunction of outdoor unit fan motor
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
Possible cause:
Faulty outdoor unit fan motor.
2
Perform a check of the main PCB. See
81].
Possible cause:
Faulty main PCB.
INFORMATION
If all procedures listed above have been performed and the problem is still present,
contact the helpdesk.
2.5.10 E8-00 – Outdoor unit: Power input overvoltage
Trigger
Effect
Reset
Compressor running
current exceeds standard
value for 2.5 seconds.
Unit will stop operating.
Manual reset via user
interface.