Daikin FTXA20A Service Manual page 97

FTXA20~50A(W)(S)(T) + FTXA20~50B(B)(S)(T) + RXA42+50A +
RXA20~35A(9) + RXA42+50B
Split Stylish R32
ESIE18-03D – 2021.05
VDC Com
DC– W
Power module IPM2 for fan motor
1 Disconnect the fan motor connector from the main PCB.
2 Check the power module IPM2 in reference with the image and the table
below.
d
e
a U
b V
c W
d DC+
e DC–
INFORMATION
When measuring on the front of the main PCB, make sure to locally remove the
protective varnish with the test leads of the multi meter.
VDC Com
U DC+
V DC+
W DC+
DC– U
DC– V
DC– W
Are the test results OK?
Yes
Ref VDC
0.501 V W
c
b
a
Ref VDC
0.475 V DC+
0.475 V DC+
0.475 V DC+
0.475 V U
0.475 V V
0.475 V W
Action
Power modules are OK. Return to
"Checking procedures" [
main PCB and continue with the next
procedure.
2 Components
|
Com Ref
DC– O.L
Com Ref
U O.L
V O.L
W O.L
DC– O.L
DC– O.L
DC– O.L
4 91] of the
Service manual
97