Question about Presto HeatDish Compact Heater

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Bypassing the buzzing mechanism

I read your post earlier tonight. How exactly did you go about bypassing the buzzing mechanism on the Presto heat dish? Currently I have mine taken apart and am REALLY wondering which part controls this! Any solutions? My heater starts buzzing after it's on for only 10 or 15 minutes. Thanks!

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  • tumbleweed75 Jan 23, 2009



  • Anonymous Feb 18, 2009

    I read the posted solution for this problem as well. But I don't have any white wires, just three black and one red. At least two seem to be connected to the buzzer. Can I just cut the wires? The thing buzzes for absolutely no reason, and scares me half to death!


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I simply disconnected the wiring and it works just fine.

Posted on Dec 23, 2012

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I have no solution. I attempted to repair the noise problem using a post that described how we should by-pass the buzzer. NO GOOD! I am trying to live with this piece of noisy ___p!!!! let me know if you find a correct solution. thanks, jim

Posted on Nov 10, 2008

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1 Answer

How do i Clean presto heat dish

It all depends on the how much dust has accumulated on inside of the dish.

Try to use the Swiffer first before mechanically altering any part. Slide the duster in through the grate, and move it around. Pull it out and repeat on the other area. You'll just have to do this around 3 times.
If heavy clean is necessary, then you might have to resort to bending the lip of the dish to separate the grate off from the dish.

IMPORTANT: make sure the unit is unplugged and cool down before attempting any of these cleaning methods.

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RE: Presto Heat Dish buzzer going off

I almost threw my heater out! I cleaned this morning with Window Cleaner and it works just fine now. It was just dust. I cleaned the round metal area not the coils.

Hope this helps.

Emailed Presto about replacing the buzzer and here is the answer I got:

There is no such part. Buzzer sounds when heater:
- is tipped
- rests uneven on floor
- is too close to furniture or wall
- has too much dust on parabolic dish
The most common reason is that the parabolic dish is dusty.
To clean the heater:
1. Unplug the heater and clean it when it is cool
2. Spray a cloth with an all-purpose cleaner such as 409
3. Wrap the cloth around a long handle such as a wooden spoon
4. Wipe between the grate from the outer edge to the center
If you have further questions, please let me know. Or call us at 1-800-877-0441 Monday through Friday 8:00 a.m. to 4:30 p.m. Central Time.

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This question has been answered. I was having the same issue and I can tell you that the solution gregstobbe gave worked for my heater.

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for those of you that want to void your warranty or just dont care there is a fix for the buzzer problem.
If you take the three screwws in the back and the one in the top next to the heat selector switch the steel dish portion will come away from the dish back. located on the bottem of the back inside panel there is a small disk looking tilt switch that has one red wire on one end and on the other a white and two black wires. remove this component and all wires from it. take all the wires from it and remove the ends exposing solid wire. for this modification you will need a philips driver wire stripper and cutter and one medium size wire nut available at almost any hardware store. take all the loose wires and wrap them together and place the wire nut on them. be sure to tuck the wire someplace away from the dish portion when going back together. put the unit back together and plug it in and "presto" you have no anoying buzzer anymore and the heater wont go on and off like it used to. this seems to be a comen problem due to lack of insulation and poor design on heatdishes part. hope this solved your problem

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The hardest part of cleaning the dish is that you can't get your hand inside the cage surrounding the dish. What I did was to use a wire cutter to snip enough pieces of the cage off so that I could get access to the dish. If you do it carefully, it looks as if it was intended and doesn't prevent the cage from working. If you think of the cage/dish as a clock, I cut all the strips between 9 and 11, and 1 and 3. Easy to clean the dish afterwards.

That might not solve the buzzing problem, though. It didn't solve it for me.

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I rewired my heat dish. I UNPLUGGED THE HEAT DISH. I loosened the three screws on the back and removed them. Then I unclipped the dish at the bottom. The dish should be loose and the bottom section of the dish should be detached from the plastic casing. Look inside the casing at the bottom. There is a red cable attached to the buzzer (it’s the silver metallic piece). Detach the red cable from the buzzer. Now look directly behind the buzzer is a black wire that connects to the circuit next the buzzer. Attach the red cable to the female receptor foot the black cable. Plug it in and it should work fine. This will permantly disable the buzzer, SO YOUR HEATDISSH NOW LOINGER HAS A WARNING SYSYTEM. IF YOU TURN YOUR HEATER OVER THE BUZZER DOES NOT GO OFF, THE BUZZER ALSO INDICATES OVERHEATING OF THE UNIT. SO BE CAREFULL. MAKE SURE THE UNIT IS UNPLUGGED WHEN WORKING ON IT. GOOD LUCK AND BE SAFE

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