Century B-VMH36SD-1 Service Manual page 54

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
Black - Red
(20°C /68°F)
(Brand: Weiling)
White - Black
(20°C /68°F)
(Brand: Weiling)
Normal resistance value
∞
(Several MΩ)
RPG13B
100.5Ω±8% 100Ω±8%
(20°C /68°F)
(Brand: Dayang)
64.5Ω±8% 68.5Ω±8%
(20°C /68°F)
(Brand: Dayang)
Service Manual - VMH 9/12/18/24 SU & VMH30/36S D Series
Digital tester
(+)Red (-)Black
U
V
N
W
(+)Red
Resistance Value
RPG50B(YKFG-50-4-1)
82.2Ω±8%
(20°C /68°F)
(Brand: Weiling)
72.3Ω±8%
(20°C /68°F)
(Brand: Weiling)
52
Normal resistance value
∞
(Several MΩ)
85Ω±8%
(20°C /68°F)
(Brand: Dayang)
57.8Ω±8%
(20°C /68°F)
(Brand: Dayang)