![background image](http://html1.mh-extra.com/html/daikin/split-sensira-r32/split-sensira-r32_service-manual_4171547081.webp)
3
|
Components
Service manual
81
(A)(F)TXF20~71A + FTXF20~25B + (A)(F)TXF20~42C + (A)(F)TXF20~42D +
(A)(F)TXF20~42E + (A)RXF20~71A + RXF20~60B + (A)RXF20~42C +
(A)RXF20~42D + (A)RXF20~42E
Split Sensira R32
ESIE18-12G – 2023.01
Is the problem solved?
Action
Yes
No further actions required.
No
Return to the troubleshooting of the
specific error and continue with the
next procedure.
3.6 Indoor unit fan motor
3.6.1 Checking procedures
INFORMATION
It is recommended to perform the checks in the listed order.
To perform a mechanical check of the DC fan motor assembly
Prerequisite:
Stop the unit operation via the user interface.
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?
Action
Yes
Perform an electrical check of the DC
fan motor assembly, see
No
Replace the DC fan motor assembly, see
82].
To perform an electrical check of the DC fan motor assembly
(A)(F)TXF-A + FTXF-B + (A)(F)TXF-C + (A)(F)TXF-D units
Prerequisite:
First perform a mechanical check of the DC fan motor assembly, see
81].
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
Comm
Voltage
1
3
0.992 V DC