SOURCE: westpoint microwave oven when it is switched on the power trips off
see this cause and fix it: Otherwise you must call a profesional repairman. You must act with carefully. God bless you
All microwaves have
some sort of a cooling fan to help keep the magnetron and controls at a
tolerable level. Most OTR models will usually use the vent motor for
the cooling fan also. Countertop units have a small fan behind the
control panel somewhere. Either way, if the cooling fan is not working
and heat builds up, it is going to open a thermostat. On some makes,
this thermostat might re-set itself as soon as the temperature cools
down. Other makes, you will have to replace the thermostat or fuse.
If
this is your microwave oven repair problem, you will need to check the
operation of the fan. Below in the component testing chart, you will
see how to test the fan. Also, if possible, make sure the fan is not
obstructed somehow and not turning. Also check your fan relay at your
control board for voltage, if no voltage, replace control board. This
fan should come on at the same time any cooking starts.
It sounds like the magnetron may have
either failed or is not being supplied with the extremely high
voltage required to run it.
YOUR
SAFETY IS PARAMOUNT
This is a job for a professional but if
you are safety clued up, here's instruction.
Make sure the !!!!any
capacitors are discharged!!!!! before attempting any sort of
repair.
Check the door interlock switches first then the high
voltage diode with either an AVO model 8 or moving coil meter on high
resistance range for short circuit, (DVM's won't show the fault!),
the capacitor can fail and go 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.
It sounds like the magnetron may have
either failed or is not being supplied with the extremely high
voltage required to run it.
YOUR
SAFETY IS PARAMOUNT
This is a job for a professional but if
you are safety clued up, here's instruction.
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 or moving coil meter on
high resistance range for short circuit, (DVM's won't show the
fault!), the capacitor can fail and go 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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