Question about LG LTM9000 Microwave Oven

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LG LTM9000 doesn't power on

It was working fine for 2 months. After that, suddenly was turned off and never more worked. I took out the ceramic fuse from inside, but i don't know where i can buy a replacement. I can read on it: 250V75A Is it right? 75A? Thank you for your help.

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It jus stopped working as soon as i set the timer to 3mins jus light switched on for a second and its gone,,,i checked the power output in the plug point its burning smell and all...this oven is...

in most cases the reason for microwaves shutting down without warning is the fuse. in some cases the fuse will fail at its own fault. to test the fault we would do a tollerence test on the unit. but the best way for you to test it is to replace the ceramic fuse with another of the same value. if the unit works then its a faulty fuse. if the unit blows the fuse then the unit has a fault in the power supply that needs to be repaired by a service tech.

Aug 03, 2010 | LG Microwave Ovens

1 Answer

No power cannot turn on

Inside the unit behind the control pannel is a ceramic fuse looks like a car glass type fuse. To replace it you must remove the outer shell. First unplug the device,2nd
place on a flat work area,3rd remove the screws from the back of the unit,4th pull the outer shell back if it's stock a flathead screwdriver can be used to aid in removal,5th after removal look behinde the control pannel find the main power wires by following them from the back of the unit the fuse will be about 1" long and about as big around as a #2 pencil remove it carefully and replace it with a new ceramic fuse. The fuses are about $3.00
If you don't feel comfortable doing this yourself find a repair shop it will cost about $35 dollars
Hope this helps
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Jan 07, 2010 | Kenmore 63672 Convection/Microwave Oven

2 Answers

Microwave doesnt power up, suddenly stopped working, can it be the fuse? ow do u check if the fuse is OK?

If there is no power at all then it could be the internal power fuse has blown, there could also be other parts faulty also. I would not recommend you to check this if you are not electricallly qualified as a microwave is a very dangerous piece of equipment to tamper with, even if there is no power to it. It would be best to call a service engineer to check it over for you.

Sep 23, 2009 | Oster 0.7 Cu. Ft. Compact Microwave

1 Answer

All of a sudden, no power, no lights, NOTHING!

if the microwave is on the same circuit as the refrigerator, it's possible that the micro was turned on just as the refer compressor kicked on. i've seen that situation pop a fuse in microwaves many times - make sure you get a ceramic slo-blo fuse

Aug 22, 2009 | Emerson Black Microwave Oven

1 Answer

Suddenly went completely dead!

I have a Sharp Carousel that got zapped once during a thunderstorm. Since it was dead, I opened it up to see what I could salvage. Turned out there is a main fuse inside, it is a ceramic cylinder with metal ends, like the old glass car fuses but ceramic instead. Bought a replacement from Digi-Key and it has worked fine ever since.

Aug 04, 2009 | Sharp Microwave Ovens

1 Answer


If fuse, door switches, and capacitor are good, the next potential problem area is the control board (behind the keypad). Look for evidence of burn markings on the board and back of keypad panel; you may need to unscrew it to pull it out and look. I discovered with the same issues you have posted my LG microwave had a burnt board. Replacement is around a hundred dollars so I will just go buy anorther microwave (not LG!).

Mar 29, 2009 | LG LTM9000 Microwave Oven

1 Answer

Toaster Side wont 'start'

I would say the door interlock switch (or its mount or wiring) has failed.

This is to prevent it from running when the door is open.

It may be shut, but if the signal from the switch is not present, it will not run.

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

May 04, 2008 | LG LTM9000 Microwave Oven

1 Answer

Emerson Mwg9111sl microwave blows 20 amp internal fuse instantly everytime.

check your thermal fuse its about 2 inches long white on the outside black on the inside it has 2 wires going to it check for

cotinuity becareful of the capacitor you need to disapate that first by touching the two teminals together with a screw driver

Apr 01, 2008 | LG LTM9000 Microwave Oven

7 Answers

Emerson Microwave MW8115SS

I bought my emerson microwave 3 years ago model# mw8115ss from walmart and have had all the problems that everyone has talked about and I thought about throwing it away until I thought about one small detail, the FUSE. China uses junky glass fuses that burst instantly with a slight power outage, door slamming to hard, moving it around, and of course constant use like myself always heating up water for bottles. I took the back of the microwave off and walla!!! a blown fuse, but wait!!! dont buy another glass fuse!!! go to your local home depot and get the ceramic fuse for microwave ovens!!! they are $2.83 at my local home depot. I replaced the junky glass fuse with the ceramic one and it has worked perfectly for six months now.

DONT let someone tell you that you cant replace a glass fuse with a ceramic one because they are full of boloney. My microwave did all kinds of things, it wouldnt turn sometimes, it would come on by itself, it would beep for no reason, turn but not heat up, you name it I had the problem. When a fuse starts to go out it can make your appliances do some strange things, check the fuse and replace it with a CERAMIC one and I promise it should eliminate your problem.

Apr 22, 2007 | Emerson MW8102SS 1100 Watts Microwave Oven

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