Question about Cfm 42 Kitchen Hood

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Emission problems nox%level is to high on 4.7 v8 what sensor could it be

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Lambda sensor on exhaust is most commonly at fault - seems to get the worst conditions to run in.

Try this link to test -

Posted on Jun 11, 2008

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SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

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Posted on Jan 02, 2017

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Why does fan seem to be on autopilot, changing speeds, turning on and off?

This Ghost Buster suggests that you have that Advanced Heat Sentry circuit investigated.

Nov 27, 2015 | Broan Evolution QP4 Series QP4 Under...

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Best by broan k23 only have high speed

I just repaired my k23 with only one speed. I couldn't find any help. I looked at the wiring diagram and saw a couple of resistors that I couldn't find in the unit. Digging a little further I found a huge wire wound power resistor with 4 taps. This resistor tested open. Voila replaced it and all is well. I also changed the small control board for no reason it didn't help.

Feb 02, 2013 | Broan-NuTone Kitchen Ranges

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I have a Best K41-1 and my variable speed on the blower does not work. It only works on high speed when slid into that position. What could be the problem?

I have the same problem (again) but with the lights not working also so something else is going on. The usual fix for the fan on high issue is to replace the switch assembly (SB06105117). It's an $80 part. This worked for me the first time it happened. If you are handy then it's a 1/2 hour project - turn the power off at the breaker.

Mar 18, 2012 | Broan-NuTone Best by Broan 30quot; 500 cfm...

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My stove keep coding and locking its door. The code that the screen reads is E2 -F3-

The F3 E2 error code indicates that the electronic oven control board in the range senses an over-temperature condition in the oven.

This can be caused by a failed temperature sensor probe, a wiring problem between the sensor and the control board, or a failed electronic oven control board.
If the oven is apparently not overheating when this error code appears, then your likely failure is the temperature sensor probe.
If the oven is overheating, then you likely have a failed electronic oven control board due to a stuck relay not cycling the oven heating element off properly.

For replacement parts - head on over to or and enter in your full model number for a full parts listing.
I recommend both sites because ...

FixYa has no affiliation with either site - I have been using and recommending them for years - trouble free.

PartSelect has a great schematic database for locating the part on your unit and great "testimonials" for each part that often times includes HOW-TO information.
RepairClinic has pictures of each part they sell and also a great how-to and troubleshooting for basic repairs.

If your unit has never been serviced - there should still be an original service manual enclosed in plastic taped to the inside of the shell.
In the service manual are Error codes, maintenance procedures, and troubleshooting steps you can follow.

Anything too complicated or beyond your scope should be handled by a professional.

If you think you want to tackle the repair - and have gotten stuck on a step - reply to your question and I will be glad to help you out.

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Oct 19, 2009 | Whirlpool Fits 36'' White Slide-Out Range...

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Bulb blew, now cannot turn off any bulb

the lamps are controlled by a triac that is probably mounted on the control board ... its not unusual for light bulbs to draw extremely high currents as they burn out ... thats because the melting tungston forms a plasma that arcs at very high current levels until a fuse or lead wire burns off inside the lamp ..thats why you see such a bright flash as they burn out .. i recall lamps of 60 watts or greater have to have a built in fuse in the base ... lamps of lower wattage are not forced by law to have that .. so when they burn out they can easily damage external electronics .. so your problem is a shorted triac .. thats a transistor like device that is often used for lamp brightness control .. you can replace the entire control board $$$ or just the defective triac (like $2) .. the bad triac will read shorted between main termanals 1 and 2 on an ohm meter ...(power off of course) .. a normal one will read open ... its likely soldered in place and may have a heat sink attached ... thats an easy job for an electronic person ..

Aug 18, 2009 | Jenn-Air JXT8136ADS Kitchen Hood

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Jenn-Air Hood - Turns on high by itself and will not turn off.

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Mar 15, 2009 | Jenn-Air JXT8030ADS Kitchen Hood

1 Answer

Ge motor c474

Typical Diagrams Will Be As Follows

C - Common
H - High Speed
L - Low Speed

W/white - Common
B/black - High Speed
R/red - Low Speed

Apr 09, 2008 | Kitchen Ranges

3 Answers

Random fan speeds and light levels???

I have the same issue. Have to reset the breaker to make it stop. Bet it is a bad controller (design fault).

Nov 13, 2007 | Broan-NuTone Allure III QS330SS Kitchen...

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