Installed correctly this will vent heat in the summer and moisture in the winter delivering a truly 24 7 365 solution to all your attic ventilation issues.
Attic exhaust fan wont shut off.
Intake vents located at the lowest part of the roof under the eaves allow cool.
It could also be because someone hotwired it to the power source.
Test the contactor with a multimeter to see if it works.
The reason behind this could be that your thermostat is set at a very low temperature.
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.
It helps cool the attic in the summer thus supplimenting your insulation.
Attic fan not turning off.
It is thermostatically controlled.
Remove the access panel with a screwdriver.
Some people face the issue of the attic fan not turning off.
This will create a nice airflow and allow more air into the fan itself.
The best solution is to add a continuous ridge and soffit ventilation system.
Attic ventilation works on the principle that heated air naturally rises primarily utilizing two types of vents.
Read more about why attic fans are a bad idea in my post on attic ventilation.
This is because it is not getting enough air.
It may be a bad thermocouple but in any case the fan does not know when to shut off.
These fans use very little electricity.
They are typically easier to install and won t detract from the appearance of your roof.
Make sure the window is at least 30 feet away from the fan.
Check the contactor relay switch.
This component tells the air conditioning fan to shut off once the thermostat reaches a reading equal to the temperature setting.
Strong attic fans can actually back draft furnaces or water heaters by pulling combustion gases out of their burnersand into the home.
However it may be on a dedicated circuit so you can shut it off in.
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.
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.
A switch to shut it off is a good option.
You have no need to turn it off.
Ventilation is very important and in the end will save you money not cost you.
If the fan emits a burning smell from the exhaust there is a problem with the motor.
When your attic reaches a certain temperature it comes on.
If you have a closed off attic install a window or open one on the other end.
