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Amica GA20E80G Microwave Oven: Hums, Burnout Smell - Grill Function Works, Repair or Replace?

yahman 12080 19
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How can I fix a microwave that suddenly hums and smells burnt in microwave mode, while the grill still works: repair it or replace it?

If the burnt smell is only from soot behind the mica waveguide cover, remove the mica, clean the charred area, and replace the mica plate/cover [#6333501][#6334031] If the magnetron itself is burnt or has a fault to the housing/input, the consensus was that it is damaged and the only real fix is to replace the magnetron [#6349743][#6350377] One reply estimated that repair would cost around PLN 150, so buying a new microwave may be more economical [#6341687] The fact that the grill still works does not rule this out, because the grill can operate without the magnetron.
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  • #1 6333106
    yahman
    Level 16  
    Posts: 251
    Rate: 11
    Hello

    I have a microwave as in the subject today (suddenly) it started to hum and something stinks during the hum (smell of burnout), the microwave has a grill function which probably works normally because during its operation the device is quiet,

    after removing the casing, I can't locate the source of this ominous smell because everything is packed quite tightly.

    The question is, can anyone help me because I'm green in this, or is it better to send it for repair or buy a new one?
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    #2 6333501
    PBK
    Home appliances specialist  
    Posts: 2386
    Help: 153
    Rate: 459
    the part of the chamber behind the mica must have charred from the moisture
    remove the mica and check that the casing is not sooted
    clean everything, replace the mica and it will be ok
  • #3 6333543
    yahman
    Level 16  
    Posts: 251
    Rate: 11
    what is "mica"
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    #4 6333561
    PBK
    Home appliances specialist  
    Posts: 2386
    Help: 153
    Rate: 459
    damn it
    buddy, use the "search" function or take the device to a specialist
  • #5 6333587
    yahman
    Level 16  
    Posts: 251
    Rate: 11
    well, I wrote that I'm green, and it's not worth giving to a specialist, so if I manage to fix it myself, I'll succeed if I break something completely, it's hard, that's why I asked for tips.
  • Helpful post
    #6 6333600
    PBK
    Home appliances specialist  
    Posts: 2386
    Help: 153
    Rate: 459
    mica is a plate made of insulating material that allows microwaves generated in the magnetron to pass through

    in short, a flat plate, usually of a creamy silver color, attached to the side inside the device, dividing the microwave launcher chamber
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    #7 6334031
    kafilomza
    Home appliances specialist  
    Posts: 285
    Help: 37
    Rate: 94
    It can also be a white plastic plate
  • #8 6341456
    yahman
    Level 16  
    Posts: 251
    Rate: 11
    Amica GA20E80G Microwave Oven: Hums, Burnout Smell - Grill Function Works, Repair or Replace?

    Amica GA20E80G Microwave Oven: Hums, Burnout Smell - Grill Function Works, Repair or Replace?

    this part has broken, you can clearly see the burnt piece of the copper one.
    My question now is what is this part called and what can be replaced or is it all or part and where can I get such a thing if possible?
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    #9 6341687
    kafilomza
    Home appliances specialist  
    Posts: 285
    Help: 37
    Rate: 94
    Buddy, unfortunately, I will sadden you, if this element is really burned out, the cost of repair is around PLN 150. This part is a magnetron so rather a new cooker awaits you
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  • #10 6343171
    yahman
    Level 16  
    Posts: 251
    Rate: 11
    it seems to me that this is because after removing this part, the stove works normally - nothing hums and the grill works.
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    #11 6344255
    kafilomza
    Home appliances specialist  
    Posts: 285
    Help: 37
    Rate: 94
    Have you checked other components (capacitor, diode, fuse
  • #12 6346382
    emass92
    Level 12  
    Posts: 35
    Help: 4
    Rate: 9
    Buddy, when you removed the microwave magnetron, now you only have a grill and there is nothing to rumble there.
  • #13 6347646
    kafilomza
    Home appliances specialist  
    Posts: 285
    Help: 37
    Rate: 94
    sometimes if a capacitor or a diode is damaged, it also hums
  • #14 6348701
    yahman
    Level 16  
    Posts: 251
    Rate: 11
    but I don't really know which diode or capacitor it is, and besides, this magneton, as you can see in the picture, is burnt so I thought it was it.
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    #15 6348767
    cezet
    VIP Meritorious for electroda.pl  
    Posts: 7549
    Help: 718
    Rate: 1405
    The magnetron has no breakdown to ground?
  • #16 6349542
    yahman
    Level 16  
    Posts: 251
    Rate: 11
    magneton is this whole can what is in the picture? is that purple that sticks out of the metal tip? because this metal tip has a puncture to this housing
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    #17 6349743
    Andrzej G
    Home appliances specialist  
    Posts: 886
    Help: 110
    Rate: 290
    The point is whether there is no transition to the housing of the magnetron input (where the wires enter).
  • #18 6350228
    yahman
    Level 16  
    Posts: 251
    Rate: 11
    the multimeter does not beep but shows 273 ohms
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    #19 6350377
    Andrzej G
    Home appliances specialist  
    Posts: 886
    Help: 110
    Rate: 290
    Well, then you have a damaged magnetron and only its replacement will help you.
  • #20 6470564
    yahman
    Level 16  
    Posts: 251
    Rate: 11
    I bought it on Allegro and everything works :)

    Added after 1 [minutes]:

    and only PLN 40 :)
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Topic summary

✨ The discussion revolves around an Amica GA20E80G microwave oven that has started to hum and emit a burning smell, while the grill function appears to operate normally. Users suggest that the issue may stem from a charred mica plate or a damaged magnetron. The mica plate, an insulating component, allows microwaves to pass through and can become sooted or burnt due to moisture. If the magnetron is indeed burnt, repair costs could be around PLN 150, leading to the suggestion of replacing the microwave instead. The author expresses uncertainty about identifying components like the diode or capacitor, but ultimately discovers that the magnetron is damaged and successfully replaces it for PLN 40.
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