Repair Procedures - Daikin Comfora XP Series Service Manual

3 | Components
To perform an electrical check of the DC fan motor assembly

3.5.2 Repair procedures

To remove the DC fan motor assembly
Service manual
76
Prerequisite: Turn OFF the respective circuit breaker.
Prerequisite: Remove the required plate work, see
1 Check the fan for damage, deformations and cracks. Replace the fan as
needed.
2 Check that the fan is correctly installed on the DC fan motor. Correct as
needed.
3 Manually rotate the fan and check the friction of the DC fan motor shaft
bearing.
Is the DC fan motor shaft friction
normal?
Yes
No
Prerequisite: First perform a mechanical check of the DC fan motor assembly, see
"3.5.1 Checking procedures" [
1 Remove the cover from the switch box; see
2 Disconnect the DC fan motor connector from the appropriate PCB.
3 Measure the resistance between the pins 6-9, 6-12, and 9-12 of the DC fan
motor connector.
Result: All measurements MUST be 71.6~82.4 Ω.
4 Check the diode module by measuring the voltage between the following pins
of the DC fan motor connector.
VDC
1
2
3
3
DC fan motor measurements are
correct?
Yes
No
Prerequisite: Stop the unit operation via the user interface.
Prerequisite: Turn OFF the respective circuit breaker.
Prerequisite: Remove the required plate work, see
Action
Perform an electrical check of the DC
fan motor assembly, see
"3.5.1 Checking
Replace the DC fan motor assembly, see
"3.5.2 Repair
4
75].
"3.10 Plate
Comm
3
3
1
2
Action
Return to the troubleshooting of the
specific error and continue with the
next procedure.
Replace the DC fan motor, see
"3.5.2 Repair
ATXP20~35 + FTXP20~71 + ARXP20~35 + RXP20~71
4
"3.10 Plate work" [ 100].
4
procedures" [ 75].
procedures" [ 4 76].
4
work" [ 100].
Voltage
0.992 V DC
1.433 V DC
OL
OL
4
procedures" [ 76].
4
"3.10 Plate work" [ 100].
Split Comfora R32
ESIE18-01D – 2022.02