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Microwave Oven Troubleshooting & Repair
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WHAT
IS WRONG WITH YOUR MICROWAVE? |
| It
doesn't work at all It sounds normal, but there's no heat I can't adjust the power level The carousel won't turn I have intermittent cooking problems The display flickers There's no heat, but it buzzes loudly It quit after I slammed the door It looks like there's lightning (arcing) inside my microwave More about microwaves Microwave replacement parts |
| Note:
If your repair problem isn't listed, click
here to email the RepairGuru. He will give you the help you need. |
| If your microwave
oven doesn't seem to work at all, check these: Fuses Door switch |
| Usually, when
your microwave oven doesn't work it all, the internal fuse (thermal
fuse) is blown. This fuse protects both you and the oven. When it
blows, you need to have a qualified appliance repair technician replace
it. |
| If the fuse
isn't the problem, check the door hooks and the door-release button.
When these are broken, the door switch doesn't activate, so the oven
can't work. |
| When the microwave
sounds okay, but there's no heat, one of the internal door switches,
the high voltage circuitry, or the circuit board may have a problem.
To resolve this problem, you need the assistance of a qualified appliance
repair technician. |
| When you can't
adjust the power level, there's probably a defective triac (a type
of electronic voltage control) or a problem on one of the circuit
boards. You need to have a qualified appliance repair technician diagnose
and repair your microwave. |
| Although the
carousel is usually driven by a small motor that's unrelated to the
heating function of the microwave, the microwave cabinet needs to
be opened to repair it. So we recommend that you seek the assistance
of a qualified appliance repair technician. Inspect the plastic drive
coupling that the tray sits on, as well as the ring-and-roller assembly,
to make sure that they're working properly. |
| Many over-the-range
microwave ovens suffer from intermittent problems caused by excessive
moisture from the range/stove entering the microwave cabinet and collecting
on the circuitry. Often the problem is with one or two simple connections
that may need tightening or soldering. But, to repair these components,
the microwave cabinet needs to be opened. So we recommend that you
seek the assistance of a qualified appliance repair technician. |
| If the display
flickers mildly and doesn't affect the way the microwave works, don't
worry about it. However, if the flickering is severe and coincides
with cooking problems, you need to pursue a solution. Because repairing
this component requires opening of the microwave cabinet, we recommend
that you seek the assistance of a qualified appliance repair technician. |
| When the microwave
won't heat, but you hear a loud buzz, you usually have a defective
power diode, high-voltage capacitor, or magnetron. We recommend that
you consult with a qualified appliance repair technician for help
in determining the problem and deciding what to do about it. |
| When you slammed
the door, you may have blown a fuse. See It doesn't work at all. |
When
you see arcing inside your microwave, it's because of food or liquid
left in the cavity or on the wave-guide cover:
|
Still haven't found, what you looking for here? We have more details on microwave oven repair for you to detect what's wrong with your home appliance. |
Warning! To avoid personal injury or even death, always disconnect your appliance from its power source--that is, unplug it or break the connection at the circuit breaker or fuse box--before you do any troubleshooting or repair work on your appliance. Also, because some components may have sharp edges, use caution while working on your appliance.
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