How To Tell Attic Fan Is Going Bad

In short are attic fans good or bad. However the utility of attic ventilation fans is actually quite a controversial topic. To test the fan motor on your air conditioner you ll have to do a continuity test.

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Many homeowners hear about attic fans installed by friends and neighbors and want to know if an attic fan is a good idea or just a waste of money.

How to tell attic fan is going bad.

If you suspect the fan motor is bad the first thing you should check is the power to. Good insulation reduces fan effectiveness. The downside of attic ventilation fans. I don t know why so many people are so defensive about power attic ventilators but here are a few of the things they ve said to me in the comments.

If the attic fan isn t turning on it could be an electrical issue a problem with the thermostat or the motor of the fan that s not working. 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. 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. There is an automatic monitoring mechanism for the attic fan that switches it on or off according to the internal temperature.

Step 1 test the fan motor. Three years ago i wrote an article titled don t let your attic suck power attic ventilators are a bad idea nearly a hundred thousand page views and 93 comments later it s still generating lots of heat. Once done test that the motor still works by plugging the motor into an extension cord that is connected to an outlet. Turn the attic fan off and unplug the motor from the thermostat.

Just like a bathroom exhaust fan attic fans direct accumulated hot air out while bringing in cool air from outside. Step 2 test the thermostat. Let s discuss the primary concern homeowners have about attic fan installation. And since the roof must be penetrated for some attic fan installations there is concern about that it may lead to water damage.

They are more powerful than bathroom exhaust fans and clear out a greater volume of air. Before you start make sure the thermostat is set to cool and that the temperature setting is as low as it will go. Click here for a video tutorial. If the fan turns on the motor is still good.