Haier GE APPLIANCES NF96US Service Manual page 20

96 upflow/horizontal single stage constant torque motor gas furnace
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Testing the Motor (Figure 17)
If any motor fails the below tests, the motor is defective
and must be replaced.
1.
Using an ohmmeter check the resistance from any
one of the motor connector pins to the aluminum end
plate of the motor. This resistance should be greater
than 100k ohms.
2.
Check the resistances between each of the three motor
connector pins. These should all read approximately
the same resistance within an ohm.
3.
Check to see if the blower wheel spins freely.
Figure 17. Motor Test
Scale
Measurement Range in Words
2 M
two megohms - two million ohms
two hundred kil-ohms -
200 K
two hundred thousand ohms
twenty kilo-ohms -
20 K
twenty thousand ohms
two kilo-ohms -
2 K
two-thousand ohms
200
two hundred ohms
Back of Control
Module
Page 20
Connector
Orientation
Between 4 and 8
Drip Loop
Figure 18. Drip Loop
ohms
0 - 2,000,000
0 - 200,000
0 - 20,000
0 - 2,000
0 - 200
O'clock
31-5000728 Rev. 0

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