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Evaporator Fan Motor
The evaporator fan motor is connected electrically in parallel with the compressor and condenser fan
motor. When the cold control contacts are closed, the compressor and evaporator fan motor are energized
simultaneously.
The evaporator fan motor is a AC/DC motor, the motor converts AC voltage to DC voltage. The purpose of
using this motor is for energy efficiency.
To check the evaporator AC/DC fan motor, carefully check for 120 VAC at the fan motor connector. If 120 VAC
is present at the connector and the fan is not operating, replace the fan motor.
Rubber grommets or isolators that are used to mount the fan motor must be in position not only to insure
quiet motor operation, but also to properly center the blade in the orifice. Likewise, the mounting screws
must be tight to properly secure the motor. All wiring should be carefully dressed to avoid obstructing the
fan blade.
NOTE
: Motor resistance and VDC cannot be checked due to the motor design.
