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If it is a Broan, there is a delay button that was also depressed. It will turn the fans off after a few minutes. If not, then you're shorted out either in the control panel or the wiring in the range hood.
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.
Had same problem & fuse fixed it.
Before buying a new control board (approx $160), check the 3 amp fuse located on the inside of the vent on the control board. You have to take the light/bottom housing & black plastic air chute off to see control board/fuse.
The problem is the little lever in the socket. Turn breaker of fan off, grab a flat head screw driver and lift the little lever slighty like a 45 deg angle. If not the replacement socket assembly is
part # R111630 comes in a pair. I do service calls for broan & Nutone
The Problem is the wiring. Take the 2 screws retaining the metal plaque off underneath the filters. You will see the wires leaving the motor going into a "molex" plastic connector which connects two another set of wires going to the control board. Check to see if the wiring colors match from side to side of plastic connector. Ive only seen it happen once but it was exactly that. I do service calls for broan & Nutone
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.