Loss of heating power of a microwave oven?

And if they were repairing rather than throwing and change? Rediscover the pleasure of the repairs yourself. How to diagnose a problem or find spare parts? Repair itself is way to save money generally!
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Re: Loss of heating power of a microwave oven?




by Christophe » 18/05/21, 13:26

Diagnose and repair your microwave oven in 15 minutes ... without finding the fault, but it works again! Excellent !! : Mrgreen:

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Re: Loss of heating power of a microwave oven?




by Christophe » 18/05/21, 14:32

The author also does in permaculture:



https://www.youtube.com/channel/UCNqADX ... 4klT703jYg

And they are renovating the Château d'Olly ... a stone's throw from my home! I'll have to go see them one of these 2 ... 8) 8) 8)

https://fr.wikipedia.org/wiki/Ch%C3%A2teau_d'Olly
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GuyGadeboisTheBack
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Re: Loss of heating power of a microwave oven?




by GuyGadeboisTheBack » 18/05/21, 15:08

Him too:
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Christophe
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Re: Loss of heating power of a microwave oven?




by Christophe » 18/05/21, 15:10

You are not nice !
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Re: Loss of heating power of a microwave oven?




by GuyGadeboisTheBack » 18/05/21, 15:13

If too !
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Re: Loss of heating power of a microwave oven?




by Christophe » 18/05/21, 15:31

Talk a lot about my new friends! : Mrgreen:
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Re: Loss of heating power of a microwave oven?




by Exnihiloest » 18/05/21, 18:31

Christophe wrote:...
I estimate at more than 50% the drop in heating ... I had to put 15 min which cooked in 7 min before ... it's subjective but the drop is substantial ...
...

A microwave is pretty basic, all the "intelligence" is in the magnetron, you don't touch it.
Probable cause, food. There is the power supply for the filaments of the tube, unlikely that the fault is there since it is connected directly to a winding of the transformer. It is therefore necessary to check the HV power supply. We must have> 4 KV. If less, possible causes: the HT diode (also unlikely, in the event of a fault it would frankly burn out), the HT capa, or even the capa protection diode. You have to test them one by one and be equipped for that.
Of course we cannot eliminate more annoying things to locate, such as a partial short-circuit of the secondary winding of the transformer, a protection that is triggered wrongly, the timer that messes up ...
I would start by opening the box, warming something up for it, and checking that there isn't a component that heats up abnormally (or already blackened), which is always a good lead to find a fault.
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