It is thermostatically controlled.
Thermostat shut off for attic fan.
Locate the thermostat casing and open it using a screwdriver.
These fans use very little electricity.
The replacement is quite simple and straightforward.
You have no need to turn it off.
If the fan comes on you know that the problem lies with the fan thermostat.
Your fan will turn off automatically after the time you ve selected or you can turn it off early by selecting stop from the fan menu.
Most manufacturers and contractors recommend a temperature setting between 100 and 110 degrees fahrenheit.
It helps cool the attic in the summer thus supplimenting your insulation.
Most attic fans operate with a thermostat that automatically turns the fan on and off based on a temperature the homeowner sets.
Tap start to run your fan.
Likewise adjustable thermostats will shut the fan off.
Ventilation is very important and in the end will save you money not cost you.
If your fan has a thermostat turn the fan on and off bypassing the thermostat.
When your attic reaches a certain temperature it comes on.
The attic has about 2 3 of blown in cellulose is pitched i don t know the pitch but it s about average for a typical suburban house and has a gable vent on each end l shaped house.
It may be a bad thermocouple but in any case the fan does not know when to shut off.
Set a daily fan schedule.
It s obviously a thermostat problem.
1 shut off the power to the fan at the main service panel.
Master flow egv5 gable mount attic ventilators are master flow egv5 gable mount attic ventilators are a great choice for exhaust ventilation.
The house was constructed in 1958 and is 2x6 wood frame on 16 centers.
They are typically easier to install and won t detract from the appearance of your roof.
When the temperature within the attic reaches a set point the fan will turn on and start venting the heated air cooling the attic space.
Switch off the power of the attic fan and remove the power cord.
They can quickly remove a larger volume of hot and or humid air from your attic compared to static ventilation which helps save money on your heating and cooling.
You need someone competent to repair it properly.
The cost of repairing the thermostat depends on the cause of the attic exhaust fan problem.
Installing a thermostat on the attic fan is a simple job that helps you make efficient use of electricity.
I recently bought a house that has an attic fan on a thermostat that seems to run whenever the outside temperature gets above about 70.
A switch to shut it off.