Reply
Sat 1 Apr, 2017 03:23 pm
My bathroom fan won't turn off unless I turn off the circuit breaker.
I have changed the wall switch and it still won't turn off.
Even with all the wires in the wall switch disconnected, the fan still comes on unless we turn off the circuit breaker.
We haven't nailed anything or changed anything in the walls recently. Don't know if it's related but another light in a bedroom stopped working a couple of months ago.
@chomper96,
Dunno Chomp but have a feelin' there's a problem somewhere in the software that controls your bulb. Is it the same kind
For instance, you haven't xpld the relation of the fan to the light
Man, Eng, Blick, help
@chomper96,
If you were able to change the wall switch, you had to be able to break the circuit to the fan. Unless your fan runs on batteries, it can't be charging itself.
Quote:By cv23 on another forum:
Re: Fan in my bathroom- won't turn off!
Postby cv23 ยป Jan 17th, 2009, 6:23 pm
Most likely there is nothing wrong with your fan.
For many years , especially in electrically heated dwellings, it was mandatory to have the fan on the manual switch you see in the bathroom and on a dehumidistat to control humidity levels. The dehumidistat turns the fan on automatically when the humidity level inside the dwelling exceeds the setting. This not only reduces your heating costs because you will be heating dry air not water suspended in the air it also makes it feel warmer as the air is drier not leaving your skin feeling moist and clammy. Excessive humidity in a dwelling can also cause mold and mildew to form resulting in health issues for the occupants.
Look around and you will probably find what looks to be a second thermostat control ( see link below). It will have a numbers like 10, 20 , 30 , 40 , on it. Those are the settings for relative humidity or percentage of water in the air. The lower you set it the more the fan will run as it is trying to remove the moist air in the dwelling and trying to bring in fresh drier air from outside through all the cracks. If you turn up the dehumidistat it should turn off the fan but you will be defeating it's purpose.
The fan is most likely running for a reason, your home is too humid. It will shut off when you reduce the amount of moisture you are putting into the air each day.
Simply unplugging the fan is not the solution, not OK and not a healthy choice for you and your family.
http://www.honeywell-thermostat.com/hon ... 46C166.htm
http://www.apq.org/News.aspx?id=1&lang=en&newsid=938
http://commons.bcit.ca/bsce/pdf/Section%208.pdf
http://www.cmhc.ca/en/inpr/bude/himu/co ... geID=70417
Some bathroom extractor fans are designed to have an independent power connection and are wired so that so you can turn on the light and the fan comes on, then when you turn off the light, the fan runs for a time before stopping. usually you can adjust the time delay. The bigger the condensation problem, the longer the delay you set. The fan running when the light is turned off, and the wires to the switch disconnected, points to incorrect wiring and/or faulty fan and/or wrongly adjusted time delay on the circuit board inside the fan.
Symptom of amateur electrician problem: posting on here. Get an electrician.
Stumble It!
Tweet This
Bookmark on Delicious
Share on Facebook
Share on MySpace