Rep: 13
1
1
I have changed the capacitor 2 times but after a few days of heating, the microwave stops heating.
Any idea what could be going wrong? The diode tested fine. And if I put a new capacitor, it works for few days - so I guess that rules out Magnetron and other switches n stuff. So a faulty circuit board probably?
Has anyone had this problem?
Cette question est-elle utile ?
Rep: 723
10
2
mrchief,
Just because it works again after a capacitor replacement does not mean the magnetron isn't failing. It could possibly be that the magnetron is burned out bad enough that you are over-driving the capacitor to blow out.
There should be more than one cap in the power circuit for the magnetron driver circuit. It's a turned circuit, so check out an iductor loops in there as well for visible damage to their insulations.
Even with a schematic and some thorough circuit testing, finding an impedance/reactance mismatch would be pretty difficult. Your hint might be that the cap is either getting overvolted, or draw much too much current.
Hope that helps, best of luck
Cette réponse est-elle utile ?
Dernières 24 heures : 0
7 derniers jours : 2
30 derniers jours : 12
Total : 933
