Fan and lights come on and go off all day long on their own
Everything was working fine but all of a sudden the fan started coming 'on" on its own and runs and then shuts off on its own and this keeps happening continuously. The lights will do the same but not as often. They "blink" rather than staying on. When the fan comes on and runs I am not able to turn it off. It has a mind of its own. This has never happened before and started for no apparent reason.
Re: Fan and lights come on and go off all day long on...
We installed our Broan-Allure range hood about ten years ago. On three seperate occasions since, the fan has randomly turned on and none of the control buttons would turn it off. After a while it turns itself off. During those same times, when you turned the lights on, they would blink before finally staying on. On each occasion, I have removed the screens and metal underpieces to gain access to the circut board. Once you can see the circut board, remove and replace the 3 Amp fuse that is mounted on the board. (Radio Shack part # 270-1054)...even if the fuse looks good, replace it. Each time this has work for about three years, then it acts up again..
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if both fan and light have quit working then you have an electrical supply problem. start with checking for thrown breakers in the breaker panel. if none are tripped then you have a broken wire or a wire no longer making a good connection. try twisting the wire nuts tighter were it wires in above it
Some installers plug the fan/light into an outlet in the cupboard above. Check to see if that has power. Some of the outlets are behind a panel in the cabinet above and you have to remove the screws. I have seen the plugs laying in the cabinet just like they had never been plugged in. Yours obviously was plugged in but maybe fell out. If the fan/light is hard wired than you should make sure the power is turned off at the breaker box and then check the wiring inside the box to make sure it is wire nutted together and is holding. I would also check that the breaker for the fan/light is still putting out power. These last two might be a little tricky if you have never tried them. The breakers sometimes go bad but look like they are set. If the whole hood fan is not getting power it is probably time for an electrician or the people who installed to come back.
I have a NuTone Allure WS2 range hood. The fan works fine, so does the control board seem ok, but the lights work only intermittently. NuTone tech support said to replace the control board, which I suspect is its kneejerk response. The board costs almost $200--and for two lights???
My problem is similar to the one whose lights work, fan doesn't, but I have a feeling my problem is different.I hope simpler.
Thanks in advance for help (light) on the problem anyone can offer.
It could be either. Usually i would say its the control board, but its very possible that its the transformer. I would start with that, the trans=25$ then control board = 110$
Its the small transformer (blue/yellow/black/white) wires coming out of it.
FAN AND LIGHT DOES NOT WORK my
zephyr typhoon stopped working. Neither light not the fan come up. I am
sure there is power going into the unit. I turned on the light one day
, the light cam on and suddenly went away. From then even the fan
stopped working. any information on what happened is appreciated.
Sounds like a motor problem...but not necessarily. Cut power to the unit. Expose the motor assembly. Turn the fan by hand...if it is jammed or hard to turn...replace that motor. Not that? There is likely a motor connector. Get a test light at the hardware store. Disconnect the motor and then probe the wires coming to the connector from the power side (with the power on again) to see if the tester glows. Yes...bad motor. No, find the bad connection. It is possible that this unit uses a multi switch...if that's the case, there will be three wires coming out of it...One is power in...the others go to the light and the fan. Then, the switch will be the culprit. Hope this helps.
I called Broan technical support. They said that they had heard of this issue before, but that there was no recall. I suggested that it was a frequent enough problem for it to come up 3 times in 12 mo. on one website. She was underimpressed with this statistic and said that they sell millions of them. She would not disclose the name of their supplier so that I could get some information on the actual controller unit. She did not seemed as pained as I was by having to part with $130 for a new controller.