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Push button of lg microwave stop/clear, start/quick start & micro is not working


Jammed due to dirt.
Power supply transformer deffective.
One button is stuck shortcircuiting the board.

Nov 06, 2016 | LG Microwave Ovens

1 Answer

What is the rated output voltage for magnetron?


The magnetron outputs microwave energy. Do you mean the output voltage of the transformer? Many microwave oven transformers produce around 2KV at 0.5A

Jul 08, 2015 | LG Microwave Ovens

2 Answers

Where to get clear diagram of magnetron circuitry with capacitor and diode circuits shown ?


Below is a common diagram for LG Microwave "High Side" components.

The component below the Monitor Interlock Switch is the Transformer. So, on the High Side of the transformer, you can see all the components.

Can you give me the model number of the unit that you are wanting information?
25638112-y3xfmd3gd40t5xgepemcew4d-4-0.jpg

Apr 10, 2015 | LG Microwave Ovens

1 Answer

Good day,subject: LG microwave oven MS3448XRS not warming contents.Checked High voltage transformer 240 volt AC input-ok.Measure primary winding(0.2-0.4 ohm) measuring 1.1 ohm,secondary winding(70-100


Probably cheaper to buy a new microwave as they maintenance charge can be costly once put on a bench.
I am not able to help with this item.

Oct 01, 2014 | Microwave Ovens

1 Answer

LG LMV1813ST MIRCOWAVE STOPPED WORKING?


The fuse can be replaced, but the underlying issue should still be investigated and resolved. Otherwise the new fuse will blow also.
If the microwave is not working the thermal fuse may have blown.
When a microwave stops working the problem is usually the line fuse or within the high voltage circuit; either the high voltage capacitor, diode, transformer or magnetron.

Aug 02, 2014 | LG LMV1813ST Microwave Oven

3 Answers

Turns on but doesn't heat only a year old LG LRM1260SW 1200 Watts Microwave Oven


I have had the LG model lrm1260sw microwave for 3 years. Recently it quit heating. I found the problem was the soldered grounding lug connection on the power transformer had lost circuit continuity and failed. One of the secondary coils on the power transformer, red wire / bare copper wire, is connected to ground / chassis. I cleaned the lug connection and added a length of wire twisted together with the bare copper coil wire and soldered to the grounding lug. I then grounded the extra added length of wire to another chassis ground point. Make sure the transformer to chassis mounting screws are tight also. Now the microwave oven works like new again.

Feb 27, 2010 | LG LRM1260SW Microwave Oven

1 Answer

LG MS-2143RSL MICROWAVE OVENT NO HEAT


hi i am suggesting that it is probably the magy as the res to grndis a bit low and therefore loading the sec supply down , just a thought
cheers grant

Oct 23, 2008 | LG LRM1250 Microwave Oven

1 Answer

LG microwave


High voltage parts are suspect. Need to put a voltmeter on the input (primary) side to the high-voltage transformer (big heavy iron thing in there) Should be getting 120Vac when it goes to cook cycle. Don't touch the other (high voltage) side of this transformer. If the power is there, you are looking at replacing either the magnatron or the high-voltage capacitor and diode. Its affordable if you do it yourself - buy the part on EBAY - lookup "universal magnatron"
Hope ya fix it!

Jan 18, 2008 | LG LMVM2075 1000 Watts Microwave Oven

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