Question about LG LMV1645 Microwave Oven

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Power went off after I pressed the start button. Have power at outlet ok.

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The main fuse in the microwave oven has blown, this is usually caused by a defective door switch.

Posted on Apr 01, 2011

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Hi I have a Samsung SMH9187 micowave that is dead (no display, light, fan, mirowave).


Sounds like the main fuse blew. It's either near where the power cord enters the cabinet, or behind the control panel (if an over the range unit).

You may also have some type of failure in the high voltage circuit; based on your description of the symptoms.

Aug 16, 2014 | Samsung SMH9187ST Microwave Oven

1 Answer

"ge spacemaker microwave oven model jvm1530"


If it went dead almost immediately after pressing the Start pad, that's usually a shorted high-voltage capacitor.

See these links before proceeding:
http://031d26d.namesecurehost.com/mwd/safety.txt
http://031d26d.namesecurehost.com/mwd/disassembly.txt http://www.microtechfactoryservice.com/cap_test.html
You can find helpful exploded view diagrams and order parts by entering your full model number from the tag on the oven here.

We're happy to help you with free advice and we'd appreciate your thoughtful rating of our answer.

May 17, 2013 | Microwave Ovens

1 Answer

I auto cleaned my oven the other day. I wiped it out with a damp cloth and later on that night went to turn it on and it would not heat up. The power turns on and the display seems to work normal and the...


Hi, Look at the home breaker box or fuse box to check for a tripped breaker or blown fuse. If your oven is not heating because there is no power, you may need to replace a fuse or reset a breaker. Also check the power outlet to confirm that the oven is plugged into the outlet securely.


Press the "START/ENTER" button to get the oven to heat after selecting your temperature, if you cannot get it to heat. If you do not press this button within five minutes of setting the temperature, the oven heating cycle will automatically be canceled and the oven control panel will return to displaying the sign.


Calibrate the temperature setting on the oven if it is not heating at a temperature that you like. Do this by holding down the "BAKE" button until the current calibration setting appears, which will be a temperature followed by "CAL." Use the up and down arrow button to increase the temperature and press the "START/ENTER" button once you are done. You can increase in five degree increments up to an additional 35 degrees.


Call the Whirlpool customer interaction center at 800-253-1301 if your troubleshooting fails to fix your heating problem. The customer service representative can give you contact details for a local service technician so that you can have the oven looked at by a professional.


Hope it helped

Aug 25, 2011 | Microwave Ovens

1 Answer

EVM1750SMS has No power. Outlet is good


press the start/off button for 3 seconds see if it displays locked, if it does press again for 3 seconds to unlock then press the clock button and follow the prompts.

Mar 07, 2010 | GE EVM1750 Microwave Oven

1 Answer

11-30-2010 I need the user manual of Amana Mictowave model RS560W . Kindly assist. Thanks. Rgds Alon Felz The real problem: After heating the food (in a certain time selected), a beep sound should be heard...


In order to solve the problem this is what I did (with a help of Mr. Hilik
@ www.microgal.co.il)
1. Unplug the power cable 220Vac from the wall outlet.
2. Make sure or the clock led is "off" and screen is dark
3. Plug again the power cable 220Vac
4. Nothing comes "on" on the led screen
5. press on the digit "zero" (0) and you hear a beep signal
6. Take a glass filled with water press on the digits "1" and then "0" and
then "start"
7. After 10 seconds the beep signal will come on again.
8. Note: this kind a phenomena appears after voltage cut off when there
is a need to lift up again the handle on the voltage breakers . FYI.

Jan 30, 2010 | Microwave Ovens

1 Answer

All power went off on a condo I rent out. When the power came back on the microwave was dead. It is over the range and has power to the outlet.


Look for a reset button in the back--press and release. If no button, or it didn't help, The case must be opened--look for a blown fuse. If one is found and replaced--ok? If it still doesn't work, you will need a multimeter to verify power is getting into the equipment and getting to various sections. Was it running when the power failed? That would likely have shorted the high voltage diode in the magnetron power supply. There is also a metal fan-like device called a stirrer that is located inside the metal waveguide where the microwaves enter the cavity and it occasionally arcs through it's plastic bearing. When it does this, it shorts out the microwaves and blows a fuse. Replace the stirrer as a unit. Hope this gets you running again!

Aug 25, 2009 | Microwave Ovens

1 Answer

Microwave is not getting power


may i please ask you if you have a meter? check that 120 volts is going in? check the buttons that you press. also check the fuse check the mains cable for any breaks. also you may want to test the display to see if any power going in?

Apr 07, 2009 | Maytag MMV4205 Microwave Oven

1 Answer

GE MicroWave JES1136WL01 died while defrosting.


Mine has the same problems. After removing top cover, check fuse on power supply board (mine was OK). Then check thermo fuse located to the far left under the top cover( 2 black wires going to it) using a meter. I then jumped this fuse to see if this was the only problem. I hope to find a replacement thermofuse at the local hardware store.

Nov 17, 2008 | Microwave Ovens

1 Answer

Microwave on the blink after power outage in the neighborhood


There may be a fuse either inside the bottom cover or the back cover.

May 30, 2008 | Hotpoint Microwave Ovens

1 Answer

Microwave has no power


Is the outlet ok? Can you plug somethng else into the outlet to see if the fuse or breaker controlling the outlet is ok? If there is power at the outlet, unplug the unit and remove the outside cover.
Look for a blown fuse on the motherboard. Replace it with the EXACT value of the original fuse. You can purchase a new fuse at Radio Shack or hardware store or auto parts store. Try powering up the unit again and see if it works now or whether the fuse blows again. If it blows again, the power supply may have been damaged. Was this a power outage or surge? Was anything else in your home affected?

- Jim

Jan 29, 2008 | Goldstar MV-1526 Microwave Oven

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