Daikin Sensira Series Service Manual page 80

2 | Components
Service manual
80
VDC Com
DC– U
DC– V
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.
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 U
0.501 V V
0.501 V W
c b a
d
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
main PCB and continue with the next
procedure.
FTXF20~71A + FTXF20~25B + FTXF20~42C + ATXF20~71A + ATXF20~42C
+ RXF20~71A + RXF20~60B + RXF20~42C + ARXF20~71A + ARXF20~42C
Com Ref
DC– O.L
DC– O.L
DC– O.L
e
Com Ref
U O.L
V O.L
W O.L
DC– O.L
DC– O.L
DC– O.L
4
procedures" [ 74] of the
Split Sensira R32
ESIE18-12E – 2021.02