Midea MEHS-09NIH2 Service Manual page 59

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
4: Indoor AC Fan Motor
Measure the resistance value of each winding by using the tester.
Position
RPG13B
Black - 530Ω±8%
Red (20℃/68℉)
(Brand:
Welling)
White - 315Ω±8%
Black (20℃/68℉)
(Brand:
Welling)
Normal resistance value
∞
(Several MΩ)
RPG15A RPG20B
75Ω±8% 381Ω±8%
(20℃/68℉) (20℃/68℉)
(Brand: (Brand:
Welling) Welling)
150Ω±8% 267Ω±8%
(20℃/68℉) (20℃/68℉)
(Brand: (Brand:
Welling) Welling)
Digital tester
(+)Red (-)Black
U
V
N
W
(+)Red
Resistance Value
RPG28H
183.6Ω±8%
(20℃/68℉)
(Brand:
Welling)
206Ω±8%
(20℃/68℉)
(Brand:
Welling)
57
Normal resistance value
∞
(Several MΩ)
RPG45B
112Ω±8% 118.5Ω±8%
(20℃/68℉) (20℃/68℉)
(Brand: (Brand: Broad
Welling) Ocean)
82Ω±8% 78.5Ω±8%
(20℃/68℉) (20℃/68℉)
(Brand: (Brand: Broad
Welling) Ocean)