I have a magic chef microwave; model # MC0153UW. It sounds like its on, then it makes a humming noise. The turntable is not working, and it is not heating up the food. It's just over two years old , and since it's over range a pain to replace. Any suggestions?
This model is a lower-end type that probably didn't cost very much. Since it's over 2 years old, you have no warranty left. Most appliance repair shops charge extra $$ for servicing installed items in the home. You'd probably be better off purchasing a new comparable model. The labor fee alone might equal what you paid for it.
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Take the tray and the plastic piece the tray sits on out of the microwave. There is a small motor that turns the turntable. It is probably bad. You should be able to replace the motor from the bottom of the microwave. Part number is 3966820200.
There are two things that come to mind, the magnetron is starting to fail, or the strapping has come loose on the fan motor housing, unplug microwave oven and remove top, [several screws] carefully inspect the fan for any loose mounts and tighten.
In many brands, there is a "mini-manual"
hidden inside the unit behind the control panel or hidden on the left side
behind the grille, which is very helpful when troubleshooting, &
our Web site, we have a video available
showing how to remove a typical over the range control panel assembly in under 5
Some questions to help you or someone you know troubleshoot it:
When you hit "Start" to microwave, do
the inside light, cooling fan, and turntable
all come on?
If not, then you probably have a bad door switch or door switch mount and should
see these files:
If the inside light, cooling fan, and
turntableare all coming on, then the problem
is in the high voltage section, and then the next questions arise:
Any unusual noises? Is it louder or quieter
We have a sound clip of what a
microwave should sound like when the cooling fan and high voltage section are
A loud buzz, hum, or groan is usually a shorted high voltage rectifier diode,
but a sound like gurgling into an empty
coffee mug is one symptom of a failed magnetron, and yet the mag can be bad
without that sound.
If there's no unusual noise, it may just be a bad connection at the magnetron.
Here are some links you or someone you know can use (in order given) for high
voltage section test help, but read the safety warnings first:
(if it is NOT shorted or burned looking, it's probably fine)
To allow us to help you effectively (at no charge), please post a NEW problem to FixYa, and please
include your brand name and the full model number from the tag in or on
the unit, your symptoms ("runs but no heat"), as well as the answers to these questions:
- When you try to microwave are the inside light, internal cooling fan and turntable all working?
- Is there any unusual noise or is it louder or quieter than normal?
(A loud buzz, hum, or groan is usually a
shorted high voltage rectifier diode, but a sound like gurgling into an
empty coffee mug is one symptom of a failed magnetron, and yet the mag can
be bad without that sound.) We have a sound clip here of what a microwave should sound like when the cooling fan and high voltage section are working. http://www.microwavedisplay.com/mwd_ad_aug_2008_background.mp3