Question about Hearthware Home Products Nuwave Pro Infrared Oven

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I SET THE TIMER ON MY NUWAVE OVEN I TURN IT ON IT TURNS ITSELF OFF

I SET THE TIMER AND WHEN I TURN ON IT TURNS ITSELF OFF

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I looked at one of these today with the same symptom. Set a cook time, turn it on and the fan starts for a second and turns back off. When you take the cover off of the unit you will see a fan. On the winding of the fan is a thermal switch. I found a bad connection on one of the wires to that switch. It threads into a couple of cutout areas in the plastic on either side of the fan windings. It is there to open if the fan stops working to prevent the thing from melting down with the heat from the element not being blown downward. The wires have a heatshrink around them, so you will have to cut that away put in a new piece of shrink, re-solder the connection, then pull the shrink over it again and shrink it down. Worked for this one and I hipe it helps you too. Good luck.

Posted on Dec 06, 2012

  • Sergio Zambrano Jan 18, 2014

    Thanks! I'll try it and I'll post back.

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Jan 27 2016 FAULT: Set temp, set time, hit start and the fan turns about 3 or 4 times and then it stops and beeps. SOLUTION: Open the unit and look for a small temp sensor ( a little silver button with a securing screw) CLEAN it with something that will remove the gunk and away it will go.

Posted on Jan 28, 2016

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  • Jian Chen
    Jian Chen Jan 04, 2017

    Thank you Rick for posting a solution. I tried your method first as it is the simplest out of the 3 answers. And it works. Much appreciate your posting.

  • Robin Wenz
    Robin Wenz Apr 23, 2017

    Also w40 on the fan nut area might help

  • Charlotte Webbe
    Charlotte Webbe Jun 29, 2019

    hi, my nuwave kept switching off after 5-20 secs. I was besides myself. Then on searching I found Hunkers.com.https://www.hunker.com/13409340/why-is-m...
    I reset the power setting... pressed 0. Then its seemed to wake up the machine to operate again? what a relief

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I have a Hearthware NuWave Pro oven with the same behavior.
"I SET THE TIMER ON MY NUWAVE OVEN; I TURN IT ON; IT TURNS ITSELF OFF."
The cook got so frustrated that this oven ended up on a basement shelf.
A difference is that it only fails sometimes.
Usually when it fails the first time it will fail over and over.
But, when I try it later it seems to work.
Using a voltmeter on the line voltage I found that it fails on days when
the incoming voltage was below 116 AC volts. On my 20 AMP kitchen circuit, the oven, using 10 AMPS as it starts up, produces a 6 volt drop in the incoming voltage. Typically it was on a summer day when everyone is using air conditioning and the main supply from the power company can drop as low as 114 volts.
I opened it up and saw that the 5 DC volt supply for the control panel
would drop to 1.5 volts if the incoming line voltage went below 112.5
volts. This would cause the control circuits to reset, shutting unit off.
Instead of a $.59 step down transformer, the Nuwave uses a $.10 capacitor divider in front of the bridge rectifier diodes to produce the raw DC supply. This makes the unit less expensive to build, but very susceptible to power line dropouts.
I removed components and cut traces on the power board to disconnect their raw supply. Then I selected a 12 volt DC power adapter from my collection of dozens of old adapters. I soldered and glued it inside the Nuwave power head. This produces rock solid 12 volt and 5 volt supplies. I verified that the oven now works even when the line voltage drops to 108 volts.
Since I have one of the ovens with a dome that has not cracked in almost two years, I enjoyed doing this repair to bring it back to life.

Posted on Aug 02, 2015

  • LynnRoadFarmer
    LynnRoadFarmer Oct 04, 2015

    I have a NuWave doing the same. It will work if I plug it into a receptacle near the main panel, but acts this way in the kitchen, so assume voltage drop is the problem. How od you identify the "capacitor divider" and how exactly did you "cut traces on the power board" etc? I am a 1/2 way electronics DIYer but this is a little above my level of understanding. Thanks for your help.
    t

  • Anonymous Dec 23, 2017

    THANKYOU! I had my oven plugged into a power bar in my art studio for curing clay. I used it many years in my last house for the same thing but it wasn't plugged into a power bar. I was in a panic because my oven is an important part if my studio and work and I live in a country where it's hard to get a new one without being extremely expensive. I simply moved the oven to a wall outlet and it is running perfectly once again. Thanks again for sharing, you made my day 10 times over!

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