I had to send in the microwave because I didn't really know what I was doing. The repair guy tested it with a meter plugged into wall while microwave was plugged into it. He said it was drawing 4 amps so he said it was probably a diode or capacitor. Since you suggested this does the 4 amp senerio sound correct?
After two weeks in the Sears repair shop, they finally looked at my microwave and they told me that I need a new transformer. Going by my earlier postings regarding the problems and the replies that I received, do you think that this sounds like a good diagnosis? It will cost me $400 Canadian. I bought the microwave in '99 for $600 Can. If it is an accurate diagnosis do you think it would be worth to fix it at this price?
6 years later..... facing a $400 repair bill.... it is time to trash it. (He's dead, Jim) New, full feature Microwave ovens can be purchased for much less than the proposed repair bill.... unless you are looking for some peculiar feature or size that only is found on the high priced units . Keep it simple and you can probably get a new one for a couple hundred dollars or so... (Canadian)
But the diagnosis doesn't make sense either if what they mean is the high voltage transformer.
The only likely failure of the HV transformer would result in a very high current and probably a blown fuse. This would be due to shorted turns in the primary or HV winding.
The original service guy tested the line current and said it was only drawing
4 A. That sounds like the input current to an unloaded HV transformer
4 A is consistent with the (partially saturating - normal) HV transformer when not loaded. So, most likely cause is a bad filament connection to the magnetron or a bad magnetron. The HV capacitor normally fails shorted, as does the HV diode, though if it exploded, it would be open. :)
And, the *ONLY* excuse to charge $400 for a transformer is that they simply do not want to fix it! Go on eBay and you can probably pick one up for $10.
Well he did say it's the Sears shop, generally those guys are idiots, my grandparents had a service contract with them for years, half the time they couldn't even fix a dishwasher or clothes dryer on the first trip out, and even so all they did was swap parts until the thing worked.
I would tell them to give me my microwave back and I would be taking it elsewhere to have it fixed. I think they are just trying to take your money or trying to get you to buy a new microwave. $400 is just insane.
No, not remotely the same, did they even test it? It's pretty clear they don't want to fix your oven, they've named the two most expensive components, both of which are very easy to test. You're wasting your time taking it to those idiots, isn't there another repair shop in town? Ideally one that doesn't sell new appliances.