• ** REMEMBER! **The microwave can still shock you even unplugged!!

    ALWAYS discharge the high-voltage capacitor first if you even think your hands will come close to any HIGH VOLTAGE components.

    Jeff mentions this: Anything in the high voltage ( magnetron, capacitor, diode, wires to and from ):
    ...Use a metal ( not the shiny chrome type ) screw driver with a insulated handle to short across ( touch both at the same time ) the terminals of the high voltage capacitor to discharge it.

    From Jeff's site: http://www.applianceaid.com/component-testing.php

    Jake
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LG Microwave LMV1831BD/00 making buzzing noise and not heating

mountainbiker33

Premium Member
Joined
Jul 23, 2014
Messages
320
Location
Valparaiso, Indiana
Model Number
LMV1831BD/00
Brand
LG
Age
1-5 years
I have a LG Microwave that is making a loud humming noise and not producing any heat. I am guessing a bad Cap or magnetron. Any ideas?
 
Hi,

I am guessing a bad Cap or magnetron

More often than not high voltage diode, magnetron or both.

Q - The microwave makes a loud "hum or buzz" noise but will not heat up the food?
A - 9 times out of 10 this is usually this is a bad magnetron, the other time is sometimes a bad high voltage diode. See components section.

Microwave repair parts.

jeff sr.
 
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