How To Check Thermostat On Exhaust Attic Fan

If the meter reads anything other than zero stop immediately.

How to check thermostat on exhaust attic fan.

How to attach a thermostat to an attic fan. Note down the wiring before proceeding to remove it. Locate the thermostat casing and open it using a screwdriver. Mount the thermostat in the attic.

If your fan has a thermostat turn the fan on and off bypassing the thermostat. Return to the service. This way you can duplicate your old settings when you install the new thermostat. Note down the temperature settings for later reference.

With a writing pad take note of the temperature settings power rating of the thermostat and fan capacity in cubic feet per minute for reference purposes. Check the fan s electrical connections with a voltmeter. If the fan comes on you know that the problem lies with the fan thermostat. Shut off the power to the fan at the main service panel.

An attic fan with a few blades may pick up a humming noise as it runs on a high speed setting. How to test an attic fan motor and thermostat. Step 1 test the fan motor. Step 2 test the thermostat.

A how to demonstration of wiring your xxfirestat or power attic vent thermostat. Check the intake for any debris. A fan that won t run is often caused by a failed motor or a bad thermostat. Sometimes it works out more economical to replace the attic fan thermostat instead of repairing it.

How to test an attic fan motor. Look for the thermostat casing and using a screwdriver open it carefully. Turn the attic fan off and unplug the motor from the thermostat. Also note down the power rating and the fan capacity in cubic feet per minute.

Once done test that the motor still works by. Step 3 test the connection between the thermostat and the power source.