Fisher FSAI-SU-90AE2 Service Manual page 53

2. Compressor checking
Measure the resistance value of each winding by using the tester.
Position
ASK89D53UEZ
Blue - Red
Blue -
Black
Red - Blue
3.IPM continuity check
Turn off the power, let the large capacity electrolytic capacitors discharge completely, and dismount the IPM. Use a
digital tester to measure the resistance between P and UVWN; UVW and N.
Digital tester
(+)Red (-)Black
N
U
P
V
W
Digital tester
(+)Red (-)Black
U
V N
W
4.Indoor AC Fan Motor
Measure the resistance value of each winding by using the tester.
ASN108D22UEZ
2.45Ω
(20℃)
Normal resistance value
∞
(Several MΩ)
Normal resistance value
∞
(Several MΩ)
Resistance Value
DA130M1C-31FZ
1.5Ω
(20℃)
53
DA150S1C-20FZ
1.77Ω
(20℃)
0.95Ω
(20℃)