If
your appliance has absolutely no functions at all, remove it from the
mains supply, remove the case and see where the mains lead goes in to
the appliance and follow the cable until you find the main fuse. Otherwise, The magnetron may have either failed or
is not being supplied with the extremely high voltage required to run
it. Hope this helps.
ONLY
USE THE SAME TYPE AND RATING OF FUSE TO REPLACE IT.
The usual
cause of this fuse failure is the door switches are contaminated or
sticking. Check the door switches before putting power back on to the
appliance.
Make sure the !!!!capacitor is discharged!!!!!
before attempting any sort of repair.
Check the door interlock
switches first then the high voltage diode with either an AVO model 8
on high resistance range for short circuit, the feed fuse on the
primary of the high voltage transformer and then finally, the
magnetron is best checked by substitution.
Hope that helps.
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