To avoid rotting wood clumping insulation and mold your attic needs to be properly ventilated.
How to test attic ventilator thermostat.
Also note down the power rating and the fan capacity in cubic feet per minute.
Step 2 test the thermostat.
Note down the wiring before proceeding to remove it.
How to check attic ventilation.
Two possible ways of testing and adjusting a power attic ventilator.
Switch off the power of the attic fan and remove the power cord.
This diagram shows how to by pass the thermostat to turn the ventilator on or.
Before running out to buy an attic fan take some time to check the existing attic its thermostat is installed in a control box and is prewired.
Locate the thermostat casing and open it using a screwdriver.
Note down the temperature settings for later reference.
Once done test that the motor still works by.
It is very important to reduce the heat build up in the attic during the hot summer months.
Turn the attic fan off and unplug the motor from the thermostat.
Step 1 test the fan motor.
How to test an attic fan motor.