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Components
Service manual
91
RXQ25+3 3 3
35AMV1B
Split Sensira R32 BBOP
ESIE21-16 – 2022.02
2
Check the state of the propeller fan blade assembly for damage, deformations
and cracks.
Is the propeller fan blade assembly
damaged?
Action
Yes
Replace the propeller fan blade
assembly, see
No
Perform a mechanical check of the DC
fan motor assembly, see
To perform a mechanical check of the DC fan motor assembly
Prerequisite:
First perform a mechanical check of the propeller fan blade
assembly, see
1
Visually check:
▪
For any burnt‑out part or wire. If found, replace the fan motor, see
▪
That fan motor fixation bolts are correctly installed and fixed. Correct as
needed.
2
Manually rotate the fan motor shaft. Check that it rotates smoothly.
3
Check the friction of the DC fan motor shaft bearing.
Is the DC fan motor shaft friction
normal?
Action
Yes
Perform an electrical check of the DC
fan motor assembly, see
No
Replace the DC fan motor assembly, see
92].
To perform an electrical check of the DC fan motor assembly
1
First perform a mechanical check of the DC fan motor assembly, see
90].
INFORMATION
Check the DC fan motor power supply (voltage) circuit on the PCB.
2
Turn ON the power of the unit.
3
Activate
Cooling
or
Heating
operation via the user interface.
4
Check the functioning of the outdoor unit fan.
Outdoor unit fan …
Action
Rotates continuously (without
interruption)
DC fan motor assembly is OK. Return to
the troubleshooting of the specific error
and continue with the next procedure.
Does not rotate or rotates for a short
time
Continue with the next step.
5
Turn OFF the unit via the user interface.
6
Turn OFF the respective circuit breaker.