Fisher FS2MIF-140AE2 Service Manual page 39

9.3.1.3 indoor unit fan speed has been out of control
Index 1:
1.Indoor AC fan motor
Measure the resistance value of each winding by using the tester.
For the definite value of the resistance, refer to 9.4 Main parts check.
2.Indoor DC fan motor(control chip is inside fan motor)
Measure the resistance value of each winding by using the tester. If any resistance value is zero, the fan
motor must have problems and need to be replaced.
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