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Magnetron does not stop running--MV1501W - Microwave Ovens

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Door switches

If one of the door interlock switches is not switching properly, that can cause the turntable/light to come on eventhough the "Starts" button has not been depressed due to the wiring of the switches.
Check for faulty door switches and/or contaminated actuators.
I hope that helps.

Posted on Dec 31, 2010

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Posted on Jan 02, 2017

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I have a Goldstar MV1501W (LG) It does not heat and the turntable quit. I believe the magnetron is bad .Is it hard to change?


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.

Replacement of the turntable motor should be carried out by a qualified appliance repair service.

YOUR SAFETY IS PARAMOUNT!

Attempt this only if you are competent.

But here is a basic method if you are mechanically minded and have electrical safety knowledge.

The motor assembly is fixed to the base of the oven usually with two screws and access is obtained usually by removing the inspection plate directly beneath the motor. It is usually a plug in synchronous motor that revolves at a few revs per minute but the plastic cogs in the motors gear box fail and the motor assembly must be replaced. They are fairly inexpensive and obtainable usually from a domestic appliance repair shop.
If you feel confident, disconnect it from the mains power, remove anything in the cavity and turn it upside down if it is a tabletop model, a little more complicated if it is built in!
Remove the inspection plate, sometimes it must be cut out with sharp cutters, and disconnect the motor. Remove the motor and go and get a new one. Fit the new motor and fit the inspection cover back on the base by turning it to fit and using an extra screw fix it then put the microwave back in its position. Plug it back in, with the turntable and plate. Put a cup of water on the plate inside of the oven and heat for 20 seconds to check the plate goes round.
Hope this helps.

Jan 13, 2011 | LG Microwave Ovens

1 Answer

Microwave not heating


The Magnetron has stopped working in this case and, you will need a replacement Magnetron heating device. this will fix your heating issue.

Replace the Magnetron. Runs about a 160.00 or maybe cheaper in most cases.

May 30, 2009 | GE Microwave Ovens

1 Answer

Doesn't heat


Sounds like the magnetron has failed possibly. This is the component that produces the microwaves that heats the food.

The cost of the magnetron is about 95% of the cost of a microwave oven. Most people don't, for this reason, replace the magnetron, they replace the whole oven which is probably what you will end up doing.

There is a possibility that the circuit that provides power to the magnetron is faulty and you need to take it apart, find the proper electrical leads and test them with a volt meter. To do this you have to remove it from its mounting and take it apart. It is a fairly lengthy process however.


Benjamin

Apr 24, 2009 | Microwave Ovens

1 Answer

Microwave


Hi

3 things can fail - the control board, the inverter board, or the magnetron. If the microwave runs for about 7 seconds with a ticking sound..then stops and shows "F-9", it is the magnetron that has failed. The fact that the unit starts and runs with the TICKING SOUND means the control board is sending signal to inverter board and the inverter board is sending signal to magnetron. Magnetron is covered by full 5 year warranty, inverter board is only 3 years.

If this is not the case then it could be a defective control board, inverter or line voltage too high.

Please do rate the solution as "FixYa" if found useful and revert for further assistance.

Thanks
Rylee

Mar 26, 2009 | Kenmore 63682 / 63684 / 63689 Microwave...

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Goldstar MV1501W not heating or turntable, light/display does wrk


micro switch is bad .remove top vent cover 4 screws,after removing plastic vent panel you will see 1 screw above display time window,remove this screw and lift up the complete button time control panel slightly and pull towards you to remove.there are 2 connections on this panel 1 is a 12 pin connector and a 2 pin power connection remove both put control panel aside.now there are 3 micro switches where the door pins close into the oven lock,remove 2 screws that hold the micro switch housing,on the bottom of housing you will see a small clip gently pull to the right and push back to remove .there are 2 switches on bottom of it and 1 on top. the 1 on top is normally open and closes when door is shut but like mine it stayed open and resulted in (light s display but no turntable)soon as i replaced upper microswitch it runs perfect.i hope this helps .MODEL MV1501W GOLDSTAR

Dec 10, 2008 | Goldstar MV-1155 Microwave Oven

1 Answer

Model 72180883400


Hi,
F-9 error code indicates a defective control board, inverter or line voltage too high. f the microwave runs for about 7 seconds with a ticking sound..then stops and shows "F-9", it is the magnetron that has failed. The fact that the unit starts and runs with the TICKING SOUND means the control board is sending signal to inverter board and the inverter board is sending signal to magnetron. Magnetron is covered by full 5 year warranty, inverter board is only 3 years.

Sep 01, 2008 | Kenmore 62702 Microwave Oven

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