How To Test A Attic Fan Motor

How to test an attic fan motor. As you probably know fan motors can be designed for several different purposes most common of these are single phase motors. A reading of zero means the fan motor winding is likely shorted and causing the breaker to trip or blow.

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How to test fan motor starting capacitors.

How to test a attic fan motor.

It can sometimes be very confusing to test fan motors for people who don t have much experience. An infinite reading on the other hand may indicate an open motor winding. Turn the attic fan off and unplug the motor from the thermostat. Switch the analog volt meter from ohms to volts.

Step 3 test the connection between the thermostat and the power source. Look for a resistance reading. If either of these conditions exists the fan motor needs to be replaced. Step 2 test the thermostat.

This guide will hopefully make testing fan motors for you easy regardless of your experience level or type of fan motor that you are testing. Once done test that the motor still works by. Let the wires that run from the capacitor to the motor. Create a parallel circuit by placing the leads on.

Disconnect the wires that supply power to the motor with appropriate screwdrivers. Step 1 test the fan motor.