Specifications
  Troubleshooting 
Electrical Control System  129 
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 
Normal resistance value 
Digital tester 
Normal resistance value 
(+)Red 
(-)Black 
∞ 
(Several MΩ) 
(+)Red 
(-)Black 
∞ 
(Several MΩ) 
P 
N 
U 
N 
U 
V 
V 
W 
W 
(+)Red 
4: Indoor AC Fan Motor 
Measure the resistance value of each winding by using the tester. 
Position 
Resistance Value 
RPG20E(TongDe) 
RPG20E(Weilng) 
Black - Red 
415Ω±8% (20℃) 
387Ω±8% (20℃) 
Red - Yellow 
396Ω±8% (20℃) 
378Ω±8% (20℃) 
Yellow - Blue 
396Ω±8% (20℃) 
378Ω±8% (20℃) 










