test with this steps. God bless you
- Check the power diodeThis
electronic component is responsible for transmitting current in one
direction. If the diode becomes defective it will cause your microwave
to not heat. Test the diode and replace it if necessary.
- High voltage capacitorResponsible
for storing electricity, this part is a key component in any microwave.
Remove, discharge, and test the capacitor to determine if it requires
replacement.
- Damaged magnetronResponsible
for generating waves and producing heat. When your microwave is no
longer heating properly, replacement will be required.
- Thermal CutoffsExamine
the thermal cutoffs on both the magnetron and the oven itself. Take off
one of the leads and using a volt-ohm meter on RX1, check the terminals.
If you get a result other than zero, replace the thermal cutoffs.
Read more: http://www.appliancepartspros.com/repair-help/microwave-repair-help.html#2#ixzz2YxACIG9d
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