Question about Presto HeatDish Compact Heater

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Presto Heater Model 0790801

The heater works most of the time but then the motion buzzer will go off on its own intermittently without the unit being moved or disturbed. Unplug and wait a bit then plug back in and it will work for some time then the buzzer will go off. Is this repairable?

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  • Steve Elz
    Steve Elz Mar 18, 2008

    buzzer goes off for no reason

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Based on what I have read, it is not repairable without re-wiring the heater, which Presto will not assist you in doing. What sometimes works (only sometimes in my case) is to cut enough of the cage off to get your hand inside and thoroughly clean the dish. Use a wire cutter to remove enough of the cage wires to get your hand inside. Usually works for awhile but not a long-term solution.

Posted on Feb 19, 2008

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Alarm comes on for no reason a couple minutes after turning it on


I have a presto heater what i did was tape the buzzer botton up. if the heater fall over the buzzer will not go off because it is taped shut. the problem is your buzzer is sticken. the heater works fine once you shut the botton shut. to eliminate the buzzer.

Dec 07, 2010 | Presto HeatDish Compact Heater

1 Answer

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.



Jan 11, 2010 | Presto HeatDish Compact Heater

1 Answer

Buzzer goes off


This was the answer from Presto as I had the same problem. Cleaned it with window cleaner and a wooden spoon and paper towels and now it works great!


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.

Dec 29, 2009 | Presto HeatDish Compact Heater

1 Answer

Is there a way to disconnect the alarm on my Presto parabolic heater? It comes on and works for about 5 minutes and then the alarm goes off. We are adults - no children around.


This is the answer I got from Presto. I cleaned it with window cleaner, wooden spoon and paper towels. Dish works great now.

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.

Dec 06, 2009 | Presto HeatDish Compact Heater

1 Answer

Please give me the number on how to purchase dust remover that came in presto heat dish box. Thank you!


This is the answer I got from Presto. I cleaned it with window cleaner, wooden spoon and paper towels. Dish works great now.

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.

Oct 25, 2009 | Presto HeatDish Compact Heater

1 Answer

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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.
http://www.fixya.com/support/t1225707-presto_heat_dish_buzzer

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buzz? is this heater an infrared or are the heat coils exposed?

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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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