If you notice that the attic fan is not switching on or off according to temperature variation it indicates that the thermostat is no longer functioning properly.
Why the new attic fan is not working.
You can diagnose it by plugging other electrical appliances that are working into the same outlet and by plugging the fan into a different power outlet.
Your attic fan may not be turning on because of an electrical problem like a tripped circuit breaker a blown fuse or a bad connection.
In this case shut off the power to the fan and check the blades.
Good insulation reduces fan effectiveness.
Fan motor runs but not the blades if the motor is working but the fan blades are not moving the problem may be the belt.
Adding an attic fan may help to lower the ambient temperature in the attic but it s not an ideal solution.
Look at the circuit breaker or fuse box to see if a switch has flipped.
The extreme temperatures in your attic are always working against your hvac system making it work extra hard to perform properly.
Other possibilities include damage to the wiring or a switch best repaired by an electrician.
Caught blades if you notice that the ventilation from the attic fan is not flowing as well as it should be there might be a blade caught somewhere.
Poor cooling performance means that one or more of the factors affecting either sizing of the product or installation were not properly addressed.
This issue can happen on any type of attic fan as it is caused by the fan blades being bent dented or broken.
If there is any damage to the belt replace it with a new one.
However the utility of attic ventilation fans is actually quite a controversial topic.
Click the link to the left.
Attic ventilation fans whether hard wired or powered by their own solar panels seem like a low cost and effective way to help keep your house cool.
Locate the thermostat casing and open it using a screwdriver.
The downside of attic ventilation fans.
If this doesn t fix the problem a burned out fan motor may need replacing.
Switch off the power of the attic fan and remove the power cord.
The replacement is quite simple and straightforward.