Daikin RXM20R Service Manual page 148

4 | Components
To perform a mechanical check of the DC fan motor assembly
To perform an electrical check of the DC fan motor assembly
Service manual
148
2 Check the state of the propeller fan blade assembly for damage, deformations
and cracks.
Is the propeller fan blade assembly
damaged?
Yes
No
Prerequisite: First perform a mechanical check of the propeller fan blade
assembly, see "Checking
1 Visually check:
▪ For any burnt‑out part or wire. If found, replace the fan motor, see
4
procedures" [ 150].
▪ 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?
Yes
No
1 First perform a mechanical check of the DC fan motor assembly, see
4
procedures" [ 147].
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 ...
Rotates continuously (without
interruption)
Does not rotate or rotates for a short
time
INFORMATION
The DC fan motor connector MUST be plugged into the appropriate PCB.
Action
Replace the propeller fan blade
assembly, see
procedures" [
Perform a mechanical check of the DC
fan motor assembly, see
procedures" [
4
procedures" [ 147].
Action
Perform an electrical check of the DC
fan motor assembly, see
procedures" [
Replace the DC fan motor assembly, see
"Repair
Action
DC fan motor assembly is OK. Return to
the troubleshooting of the specific error
and continue with the next procedure.
Continue with the next step.
RXM20~71R(9) + ARXM25~71R(9) + FTXM20~71R + ATXM25~50R +
"Repair
4
150].
"Checking
4
147].
"Checking
4
147].
4
procedures" [ 150].
"Checking
Split New Perfera R32
ESIE20-11B – 2022.02
"Repair
FVXM25~50A