Fisher FS2MIF-140AE2 Service Manual page 61

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.
Posi
RPG20D( RPG28D(T
tion
Weilng) ongDe)
Blac
398Ω±8% 255Ω±8%
k -
(20℃) (20℃)
Red
Red -
345Ω±8% 335Ω±8%
Yello
(20℃) (20℃)
w
Yello
345Ω±8% 335Ω±8%
w -
(20℃) (20℃)
Blue
Normal resistance value
N
∞
U
(Several MΩ)
V
W
RPG28D( RPG20E(T
Dayang)
271.3Ω±8
% (20℃)
347.8Ω±8
% (20℃)
347.8Ω±8
% (20℃)
Digital tester
(+)Red
U
V
W
(+)Red
Resistance Value
RPG20E(
ongDe) Weilng)
415Ω±8% 387Ω±8%
(20℃) (20℃)
396Ω±8% 378Ω±8%
(20℃) (20℃)
396Ω±8% 378Ω±8%
(20℃) (20℃)
60
Normal resistance value
(-)Black
N (Several MΩ)
RPG13H( RPG25(T
Weilng) ongDe)
575Ω±8% 295Ω±8%
(20℃) (20℃)
558Ω±8% 420Ω±8%
(20℃) (20℃)
558Ω±8% 420Ω±8%
(20℃) (20℃)
∞
YSK68-4P( YDK37
Weilng) -4P
258.7
285.8Ω±8
Ω±8%
% (20℃)
(20℃)
189.7
178.5Ω±8
Ω±8%
% (20℃)
(20℃)
189.7
178.5Ω±8
Ω±8%
% (20℃)
(20℃)