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Lg lmv1813sb replacing magnetron

How do i know if I have a bad magnetron and how easy are they to replace?

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2 Answers

Our LG over the stove microwave oven LMHM2017ST is powerless.


Probably burned up the magnetron. You are cautioned not to operate the oven empty.

Jul 27, 2017 | LG Microwave Ovens

1 Answer

Why does my microwave stop working and flash F-9


Since this an LG microwave, an F9 error when the inverter module fails. Unfortunately, other parts could cause the inverter to read as a failure. A bad magnetron, relay 2 or door switches or the connections between the various parts could be bad. Since the microwave is starting, the switches are the least likely culprit. However, it's hard to determine if the inverter or the magnetron is bad without replacing one part. Then the other if the first repair doesn't solve the problem.

I hope this helps.

Cindy Wells

Mar 19, 2013 | LG Microwave Ovens

1 Answer

WHY DID MY MICROWAVE OVEN BURST INTO A FLAME AFTER 30 SECONDS ON HIGH POWER? TWICE. LMV1314B bought Jan. 2008


Hi,
Actually you don't need to replace the microwave, you just need to replace the carboard piece or "wave guide" and replace the magnetron inside the microwave behind the cardboard piece. The magnetron will commonly arc out to the wave guide if the wave guide gets something that splatters on it. The repair isn't cheap because the magnetron costs about $200 and the wave guide is another $30 or so, but if you replace both these parts you should be good to go again.
The magnetron usually have 5 years warranty, however you need to speak with manufacturer itself for the same.
Let me know,if needed further assistance.
Hope i helped you.
Thanks for using ' Fixya ' and have a nice day!!

Sep 23, 2011 | LG LMV1314 Microwave Oven

1 Answer

Does not heat up


HI. in most cases, this will lead to a failed Heating device(magnetron tube).It would be wise to check the Magnetron cutoff fuse to be sure of its integrity. if the fuse is blown, simply replace it. if the fuse continues to show continuity, replace the magnetron.

(((The fuse is located inside the unit along side the magnetron)))

Aug 01, 2009 | LG Microwave Ovens

1 Answer

Heat up


If it's within the magnetron portion of the warranty (usually 5-9 years) but out of the original full warranty (usually 1 year), then your manufacturer will cover the part cost, but not the cost to visit you or the labor charge to do the work.

In this case, the magnetron is the most likely suspect, but other suspects would be :

- loose connection at the magnetron
- problem or loose connection on the control unit circuit board
- bad magnetron or other high voltage part (such as a shorted diode)

If you or someone you know decide to look into it, we have critical safety information, info on door switch diagnosis and replacement, and disassembly information at our site, and our link is at our listing here on FixYa: http://tinyurl.com/yzjozk

For Goldstar / LG / L.G. help, call 1-800-243-0000 (M-F, 7am-8pm CT, Sat 8-5 CT) and choose the appropriate prompt from the menu or visit http://www.lgservice.com.

We're happy to help and we appreciate your thoughtful rating of our answer.

Jul 10, 2008 | Goldstar MV-1715 1000 Watts Microwave Oven

1 Answer

GoldStar MH-1357M microwave


Generally, the most common causes of a failure to heat are:

- bad door switches or door switch mounts
- loose connection at the magnetron
- problem or loose connection on the control unit circuit board
- bad magnetron or other high voltage part (such as a shorted diode)

If it's within the magnetron portion of the warranty (usually 5-9 years) but out of the original full warranty (usually 1 year), then your manufacturer will cover the part cost, but not the cost to visit you or the labor charge to do the work.

If you or someone you know decide to look into it, we have critical safety information, info on door switch diagnosis and replacement, and disassembly information at our site, and our link is at our listing here on FixYa: http://tinyurl.com/yzjozk

For Goldstar / LG / L.G. help, call 1-800-243-0000 (M-F, 7am-8pm CT, Sat 8-5 CT) and choose the appropriate prompt from the menu or visit http://www.lgservice.com.

We're happy to help and we appreciate your thoughtful rating of our answer.

Jun 17, 2008 | Goldstar MH-1355M Microwave Oven

1 Answer

Goldstar NV1502 No Heat


You should still have about a 5-year warranty on the magnetron, if that's the trouble.

If everything else works, it's almost certainly a high voltage component, most likely the magnetron or diode, but also possibly the transformer.

Generally, the most common causes of a failure to heat are:

- bad door switches or door switch mounts
- loose connection at the magnetron
- problem or loose connection on the control unit circuit board
- bad magnetron or other high voltage part (such as a shorted diode)

If you or someone you know decide to look into it, we have critical safety information, info on door switch diagnosis and replacement, and disassembly information at our site, and our link is at our listing here on FixYa: http://tinyurl.com/yzjozk

I would contact LG / Goldstar first. For Goldstar / LG / L.G. help, call 1-800-243-0000 (M-F, 7am-8pm CT, Sat 8-5 CT) and choose the appropriate prompt from the menu or visit http://www.lgservice.com.

We're happy to help and we appreciate your thoughtful rating of our answer.

May 05, 2008 | Goldstar MV-1501 Microwave Oven

2 Answers

JVM2050 Doesn't cook food sometimes


Not the magnetron if intermittent. Probably a bad smartboard. Easy to replace if you know the basic precautions to take.

Mar 05, 2008 | GE JVM2050 Microwave Oven

1 Answer

Microwave will not heat food


Found this under Maytag instead of LG, but will be happy to help.

Generally, the most common causes of a failure to heat are:

- bad door switches or door switch mounts
- loose connection at the magnetron
- problem or loose connection on the control unit circuit board
- bad magnetron or other high voltage part

If you or a friend decide to look into it, we have critical safety information, info on door switch diagnosis and replacement, and disassembly information at our site, and our link is at our listing here on FixYa: http://tinyurl.com/yzjozk

Magnetron diagnosis is here: http://gallawa.com/microtech/mag_test.html

We're happy to help and we appreciate your thoughtful rating of our answer.

Dec 08, 2007 | Maytag MMC5000 Microwave Oven

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