44 32808001101
Specifications subject to change without notice.
DIAGNOSIS AND SOLUTION (CONT)
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.
Table 16—IPM Continuity Check
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
Fan Motor
Measure the resistance value of each winding by using the tester.
Table 17—Fan Motor
Model YKT-32-6-202L YKT-32-6-3L YKT-48-6-206 YKT-63-6-200L
Brand Tongde Welling Welling Welling
Black – Red
Main
Ω 86 213 152 88.5
Blue –Black
AUX
Ω 64 156 142 138
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