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From: "Carlos E.R." <robin_listas@es.invalid>
Newsgroups: sci.electronics.repair
Subject: Re: It was so, so easy to repair the microwave oven
Date: Thu, 15 May 2025 12:51:06 +0200
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On 2025-05-14 23:54, micky wrote:
> It was so, so easy to repair the microwave oven, which was sparking with
> the current used to waken Frankenstein's monster.  Took maybe 20
> minutes.
> 
> It turns out all most of these sparkers need is a new waveguide cover.
> That's the rectangular piece of mica on the right wall of the inside, up
> near the top. It gets food splatter and somehow that attracts sparking.
> Amazon sells many of them, some precut to the size used by specific
> models.

Ah!

> 
> I paid 7.50 for four blank sheets, enough in most cases to do 8
> microwaves, but certainly 4 of them.
> 
> This one also included scissors, which all but one commenter said were
> terrible but they worked fine for me.   I have utility knives and box
> cutters but it wasn't worth going downstairs to get them,  I also needed
> one small hole, and it wasn't worth looking for a drill.    I used one
> spike of a corn-on-the-cob holder with 2 spikes to make a couple holes,
> then the point of a steak knife to enlarge the hole to the right size.
> 
> The mica bends enough to squeeze into its brackets.
> 
> This is a small one but it's labeled 1350 watts.   Sells for 60 to 80
> dollars but fixed for 7.50.

Curious to know, thanks.

-- 
Cheers, Carlos.