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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
P
4: Indoor AC Fan Motor
Measure the resistance value of each winding by using the tester.
Position
YKSS-68-4-15-1
(Weilng)
285.8Ω±8%
Black -
Red
(20℃)
178.5Ω±8%
Red -
Yellow
(20℃)
178.5Ω±8%
Yellow -
Blue
(20℃)
Normal resistance value
N
∞
U
(Several MΩ)
V
W
Digital tester
(+)Red
(-)Black
U
V
W
(+)Red
Resistance Value
Normal resistance value
∞
N
(Several MΩ)
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