Test the contactor with a multimeter to see if it works.
Attic exhaust fan wont shut off.
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.
Master flow egv5 gable mount attic ventilators are master flow egv5 gable mount attic ventilators are a great choice for exhaust ventilation.
Attic fan not turning off.
It helps cool the attic in the summer thus supplimenting your insulation.
Remove the access panel with a screwdriver.
It may be a bad thermocouple but in any case the fan does not know when to shut off.
The best solution is to add a continuous ridge and soffit ventilation system.
When your attic reaches a certain temperature it comes on.
This is because it is not getting enough air.
The house was constructed in 1958 and is 2x6 wood frame on 16 centers.
Intake vents located at the lowest part of the roof under the eaves allow cool.
Check the contactor relay switch.
If there are not enough soffit gable or ridge vents a powerful attic exhaust fan can pull the air from your home through the ceiling if it is not perfectly sealed off.
You have no need to turn it off.
It could also be because someone hotwired it to the power source.
A switch to shut it off is a good option.
Ventilation is very important and in the end will save you money not cost you.
They are typically easier to install and won t detract from the appearance of your roof.
This component tells the air conditioning fan to shut off once the thermostat reaches a reading equal to the temperature setting.
If the fan emits a burning smell from the exhaust there is a problem with the motor.
This will create a nice airflow and allow more air into the fan itself.
Read more about why attic fans are a bad idea in my post on attic ventilation.
Attic ventilation works on the principle that heated air naturally rises primarily utilizing two types of vents.
However it may be on a dedicated circuit so you can shut it off in.
These fans use very little electricity.
The reason behind this could be that your thermostat is set at a very low temperature.
Strong attic fans can actually back draft furnaces or water heaters by pulling combustion gases out of their burnersand into the home.
Turn the air conditioning unit s breaker off at the main electrical panel.
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.
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 is thermostatically controlled.
Some people face the issue of the attic fan not turning off.
