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48
Specifications subject to change without notice. SG-38MHRC-01
DIAGNOSIS AND SOLUTION (CONT)
IPM Continuity Check
Turn the power off, let the large capacity electrolytic capacitors discharge completely, then dismount the IPM. Use a digital tester to measure the
resistance between P and UVWN; UVW and N.
Table 18 — IPM Continuity Check
Fan Motor
Measure the resistance value of each winding by using the tester.
Table 19 — Fan Motor
DIGITAL TESTER
NORMAL RESISTANCE
VALUE
DIGITAL TESTER
NORMAL RESISTANCE
VALUE
(+)Red
(-)Black
∞
(Several M
Ω
)
(+)Red
(-)Black
∞
(Several M
Ω
)
P
N
U
N
U
V
V
W
W
(+)Red
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