Question about Waring WMK300 Professional Belgian Waffle Maker

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Belgian Waffle Maker Problem

My Waring model WMK300 turns on but does not heat up. The power light glows but the ready light never turns green.

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  • Anonymous Nov 12, 2007

    I bought my waring pro 2 nights ago. The first night the waffles were great!! The next morning there was no heat. Did I just get a lemon??

  • psdunton Nov 24, 2007

    I have used mine for about 8 months no problem. Then one morning no heat. I checked wiring, could fine no problems.

  • Mosconi Dec 13, 2007

    At first it heated up, but the ready light didn't come on. I was able to make one waffle, then the heat kept dropping. I couldn't make any more waffles.

  • Anonymous Dec 18, 2007

    plug it in, power light is on, but it never heats up. I took the first one back thinking it was a one off problem but it seems to be a reoccurring theme. Anyone have the solution and how to do it?

  • Anonymous Jan 05, 2008

    I had the same was a gift and I have no receipt. I used it Christmas morning - great waffles. Next day, wouldn't heat up at all. Red light comes on, but never gets hot.

  • easygoweb Jan 09, 2008

    Second one that just stopped heating. Is the resistor in the previous post mentioned easily replacable?

  • Ljmclane Feb 12, 2008

    I have just gone through 3 WMK300 Waffle Makers in the past 4 months. Waring has been great at replacing them under the warrenty, but the problem is consistent - works great, then all of a sudden - NO MORE HEAT. I wish I knew exactly what the problem is (does something snap in the rotating iron?) because I love the waffles this machine makes.

  • Anonymous Mar 01, 2008

    Yep -- same issue.  Used it twice. First time great .  Second time -- one waffle then -- whammo -- never got hot again.

    Does anyone have a SOLUTION?

  • chaicat Mar 03, 2008

    i also have the same problem - used it 3 times and now it won't heat. I can't find the manual or phone number for Waring - does anyone have it?

  • Anonymous May 22, 2008


  • mreynolds01 Jul 20, 2008

    the light comes on but won't heat up

  • Anonymous Jul 28, 2008

    Yes I have only used this machine 3 times and it worked great. Good waffles - thick and fluffy. Now I try it the 4th time and the darn thing won't heat up. It was a Christmas present from a relative. They bought the same model for my sister and hers doesn't heat up any more either.

  • ChrisHinshaw Apr 09, 2009

    Same problem. My wife and I used it for about 6 months. Then one day, the 'done indicator' never lit, so we opened the lid to a waffle dough mess. It hasn't worked sense...I've had to settle for pancakes.

  • tdtd81 May 10, 2009

    Same problem, used to work fine, today, power turns on, red light comes on, irons heat up a _bit_, but green ready never comes on.

    cleaned gunk out, tried flipping it on one more time, and there was a bit of a 'pop' inside unit.

    Unplugged, removed bottom cover (on the base, not the irons), and the little control board was partially fried, where the two power leads come in ("H1" and "L"), burned through the circuit board, the blade connects just crumbed right out of the board when I tried to unplug the two wires.

    Seeing if I can order a control board. Maybe I also have the 'thermal fuse' problem, too, and this burned control board was secondary to that (maybe a bit of water got in while cleaning, although it was perfectly dry inside).



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Here is what is happening, and if you're out of warranty and so inclined how to easily fix it yourself.

Make sure you are unplugged from the wall before doing anything or you will get shocked. You do not need to take the bottom cover off the base. You do not need to take the top plate apart (they super glued one screw in the top plate (lid), you'll strip out the screw head trying to remove it anyhow). All you need to open is the bottom plate, it has 4 screws in it you will see when you open the lid, these screws are not super glued and will come out. 2 on each side in the back, 2 in the center of the front, long screws go in the back, short in the front.

There are 2 white wires, 1 black wire, 1 green wire that run up the neck of the waffle maker to heat the top and bottom heating elements. The 2 white wires are neutral, the green wire is a ground, the black wire is power.

This black wire runs from the electronic control board in the base of the unit, up the neck in the rear, through a thermal fuse, to the bottom element then jumps up to the top element. All you need to take apart is the bottom plate, the part you pour the batter into. It has 4 screws you will see when you open the top plate up, take those out and you are going to find the black wire is covered by a white rubber like tube about 3 inches long. In the center of this rubber insulation there is a metal clip with a single screw. Take that screw out, pull off the metal clip and slide (don't cut) the rubber like insulation back.

You will find the black wire is crimped onto a silver metal bullet looking component. This component is called a "thermal fuse", its designed to fail at 240 degrees C. Its obviously a design flaw and the thermal fuse is under rated for the actual heat within the device. Its also a one shot fuse, so when it blows it kills power on the black wire from going to the top and bottom plates, thus no heat. It is not resettable.

I didn't even cut mine out (Waring is very skimpy with their wire, they don't leave you even a hint of extra wire to work with). I just tightly twisted the bare metal wire on each side of this component like a bread tie leaving the blown fuse in place. Then be sure to slide the rubber like insulation back over all of the bare metal so it is covering the black wire on both sides. If you don't it will short out and blow your house circuit breaker when you turn it on.

This thermal fuse was probably a requirement of the UL Listing. Its over kill, everything in there is metal so if it over heats in that area there is nothing flammable to burn. If a run away temperature occurs the wire itself will melt, short out and trip your house breaker. There are stacks of these units brand new with this same problem anyone reading this is having, the thermal fuse is under rated, the fix is simple.

Posted on Mar 11, 2009

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For those of you not electrically inclined (like me) here is the contact info for Waring Repair, etc.  Followed by the excerpt from an email on how to handle the return, etc.

--- Consumer Product Returns Waring Products 
314 Ella T. Grasso Avenue
Torrington, CT 06790Any requests concerning product returns should be directed to customer service.
1-800-4WARING (1-800-492-7464)
» [email protected]
--- The Wafflemaker should come directly to us here at the factory.
It has a 1 year warranty against manufacturer's defect from date of purchase/gift.
Without a receipt we go by the date code on the bottom of the wafflemaker....and the warranty would be from that date.
We do not open them up and do internal repairs.
We just replace the whole unit, instead of repairing it.

Our address:

Waring Serivce Center

314 Ella Grasso Ave

Torrington, CT 06790

Include a letter with name, address, copy of receipt/date of gift and why you are sending it to us.

We advise people to send it by UPS or Insured Mail, so if anything happens it can be traced.

Under the terms of the warranty you would pay for the shipping into us and we pay for it back to you.

Posted on Mar 03, 2008

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I called Waring and evidently this is a recurring problem as I was told to simply cut the electrical wire and send it to Waring. Within three weeks a new waring pro waffle iron was sent to me.

Posted on Mar 29, 2009

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Don't take it apart or try to repair the unit, I was told that would void the warranty. Call Waring (1-800-492-7464) or send the waffle maker in to them. They replaced mine, no questions asked with an upgraded unit which is working great, I havn't had to contact them since.

Posted on Mar 09, 2009

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Check for a broken connector to the heating element.

Posted on Aug 21, 2007

Receipt not needed - 1 year warranty from Waring, they will replace the entire unit.

Posted on Mar 03, 2008

I found the problem to be a resistor in the line.  It is covered by a white insulator.

Posted on Oct 20, 2007

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1 Answer

I need a replacement handle for my Waring WMK300 Professional Belgian waffle maker. Where can I get one?

If it is out of warranty, you will need to ask for parts from a service center.
No one is offering broken, used or as-is WMK300 on ebay. Maybe you should try to sell your waffle maker on ebay as parts. Somebody must need the circuit board, for example.

May 19, 2010 | Waring WMK300 Professional Belgian Waffle...

3 Answers

Waffle plates stop heating

The most common reason for not heating up is because of a blown thermal fuse. Apparently the controller lets the iron get too hot or the fuse is out of manufacturing tolerance - and so the fuse opens.
The green lamp is normally lit when the relay is off and dark when the relay is on. When cold, the relay normally turns on within a second of power-up (switched on). During power-up, the green (ready) lamp should flicker on, and then as the relay clicks, go dark. If the green (ready) lamp does not flicker, the fuse is probably blown.
The fuse is clamped inside the bottom clamshell in silicon tubing. A replacement fuse (240°C) can be purchased from many sources. The fuse should be re-attached to the wires with new all-metal crimp fasteners.
If the iron is getting too hot and blowing thermal fuses, you may be able to avoid this failure by keeping the thermostat set lower.

Apr 09, 2010 | Waring WMK300 Professional Belgian Waffle...

1 Answer

No heat on brand new Waring WMK300 waffle maker

Lots of appliance makers include a 1 800 number with the paperwork that comes with an appliance.

I would try to find that number and call them. They owe you a replacement unit. If you can't find the number do a Google search for Waring and they should have a tel number and/or a "contact us" place to send and email.

Good luck Loringh

Sep 21, 2008 | Waring WMK300 Professional Belgian Waffle...

1 Answer

No heat

It will initialy take some time to heat, but if it doesnt become hot in 3min or so.. then make sure voltage is properly fed and also check for any switches or reset button. If all this doesnt work then it means the heating coil inside wud have been cut or fused.


Feb 10, 2008 | Waring WMK300 Professional Belgian Waffle...

1 Answer

Waffle Iron Handle Broken - Need Replacement

Go to the waring site, and look up the nearest dealer for repair and bring it to them. They should be able to contact waring for you and get you a replacement.

Sep 02, 2007 | Waring WMK300 Professional Belgian Waffle...

3 Answers

WMK300 turns on but doest not heat up

the problem is an open thermal fuse. This fuse is located in the fixed grill; it is clamped to the grill and is covered by a white plastic sleeve.

The replacement part should be a 240°C/464°F 10 - 15 Amp thermal fuse. NTE sells a part NTE8242 which works available from for $1.41 plus shipping.

Oct 22, 2006 | Waring WMK300 Professional Belgian Waffle...

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