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 MΩ)
(+)Red (-)Black
∞
(Several MΩ)
P
NU
N
UV
VW
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
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