Question about Broan-NuTone Allure III QS330SS Kitchen Hood

1 Answer

Broan Allure QS3

Install was easy, but it is not functioning correctly. With no buttons pushed, the fan runs at extreme low speed. I can turn it off only by pushing the boost button, Lights do not work. Pushing button/ speed 1 produces a higher speed, but button 2 slows down fan and button 3 slows the fan down even more. Broan tech support sent me a new control board, but that did not solve problem (same symptoms). I do not have a wiring diagram, so I do not know if the wire harness is misswired. Maybe a transformer is bad. Suggestions?

Posted by on

1 Answer

  • Level 1:

    An expert who has achieved level 1.


    An expert that got 5 achievements.


    An expert whose answer got voted for 20 times.


    An expert who has answered 20 questions.

  • Contributor
  • 38 Answers
Re: Broan Allure QS3


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


Posted on May 14, 2008

Add Your Answer

0 characters

Uploading: 0%


Complete. Click "Add" to insert your video. Add


3 Points

Related Questions:

1 Answer

Broan Allure range hood fan will not turn off, no matter which button is pushed.

The fan switch contacts are probably welded together or the actuator mechanism is broken. Your best bet is to replace the fan switch, probably with a similar type having a higher current rating so the new one won't also be susceptible to contact welding. If you have an industrial electrical supply dealer or electronic surplus parts store in your area, those would be good places to look for a replacement.

May 19, 2011 | Broan-NuTone Allure III QS330SS Kitchen...

1 Answer

I have QS3 series range hood. Fans are not working though lights are okay. When I click the fan buttons it does turn green, with clicking sound however fan doesn't turn on. Please advice

Sometimes they can be cleaned and oiled and they will work again...
Cleaning the grease and dust with out ruining the motor is the tricky part...
Take the unit apart as much as possible...spray down the fan part with a degreaser or strong cleaner...let it soak and they spray it down with water to rinse it off...
Then work a few drops of light motor oil into the motor by proping up the fan so that the oil will run down the shaft and into the motor...

then get it running smoothly by working it by hand...

Put it all back together and it should work again...



Jan 15, 2011 | Broan-NuTone Allure III QS330SS Kitchen...

2 Answers

My broan allure turns on by itself

Isn't it suppose to turn on automatically? The broan has a heat sensor!

Jan 08, 2009 | Broan-NuTone Broan Range Hoods Allure II...

1 Answer

Braun QS3 Range Hood

The circuit board that we use to replace the old ones are a new generation of circuit boards. To this day i have never had to replace a circuit board that i had already replaced, and beleive me i replaced a fair share.

Jun 13, 2008 | Broan-NuTone Allure III QS330SS Kitchen...

2 Answers

Vibration at high speed

check these causes fan blade brackets,fan blade for cracks, any grease on blades.

Dec 27, 2007 | Broan-NuTone Allure® I WS136BC Kitchen...

1 Answer

Qs3 performance ring band


You only need that ring if you dont have an exit. All it does is take away from its sucking capabilities. I do service calls for broan & Nutone

We have the part:


Dec 18, 2007 | Broan-NuTone Allure III QS330SS Kitchen...

1 Answer

Broan allure fan and light

Check that you have not accidentaly switched the wall socket off in the cupboard above the rangehood. The slide switch could also be faulty.

Oct 30, 2007 | Broan-NuTone Allure® I WS136BC Kitchen...

4 Answers

Broan Allure II

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.

Jan 30, 2007 | Broan-NuTone Allure II QS230SS Kitchen...

Not finding what you are looking for?
Broan-NuTone Allure III QS330SS Kitchen Hood Logo

926 people viewed this question

Ask a Question

Usually answered in minutes!

Top Broan-NuTone Range Hoods Experts

Richard Roth
Richard Roth

Level 3 Expert

9472 Answers


Level 3 Expert

57192 Answers

Phil Lovisek
Phil Lovisek

Level 3 Expert

705 Answers

Are you a Broan-NuTone Range Hood Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides