20 Most Recent LG LMV1650ST Microwave Oven - Page 2 Questions & Answers

Hi,

There could be 3 Reasons for the ' No Heat ' situation in Ovens :-

1. Magnetron - This is an Expensive Part and most common Fault in GE Microwave Ovens.

Procedure to Test Magnetron

http://www.gallawa.com/microtech/mag_test.html

2. It would be High Voltage Diode.

http://www.gallawa.com/microtech/diode.html

3. It would be High Voltage Capacitor.

http://www.gallawa.com/microtech/cap_test.html

The Last 2 would be Inexpensive to Fix.

Note - It is always better to check HV Diode and HV Capacitor before you replace Magnetron.

Let me know, if needed further assistance.

Hope i helped you.

Thanks for using ' Fixya ' and have a nice day!!

Hi,

Sorry to hear your having problems with your microwave.

There are more than one fuse so the idea is to find which one [ if any] are bad / good.

Turn the unit upside down and remove all screws holding the cover on.

Look for the fuses that will very close to this diagram if not exactly. Just do not short out the transformer even unplugged for days this can give you a nasty shock and more.

Here you go and best of luck



Rice

Sounds like the magnetron has failed. 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

15A & 20A ceramic fuses can be had locally in most grocery stores, hardware stores, home improvement centers, and big box or department stores.

Your fuse can be tested with a test light, continuity tester, multimeter, etc.

You should also check the thermal cutout / thermostat on the magnetron in your oven is truly dead.

If you need other parts, call 866-779-5835 toll free.

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

You need to replace the magnatron and the HV diode. Replacing the capacitor is also an advantage.

When the microwave sounds okay, but there's no heat, one of the internal door switches, the high voltage circuitry, or the circuit board may have a problem. To resolve this problem, you need the assistance of a qualified appliance repair technician.
If it is under warranty you are golden. If not, you should get an estimate, as many new microwaves are now in the 50 dollar to 99 dollar range

All microwaves have an internal fan. Generally, they work whenever the unit is heating. There may be a second 'overload' fan...that may be what they are referring to. If this is an over-range unit, these items have special sensors related to heat from the stove. My advice: don't mess with it if it is doing whatever else you want.

It may be that the high-voltage transformer or magnetron has failed and is loading down the voltage. The presence of smoke usually indicates a bad transformer.

 

I would try a toaster or toaster oven in that outlet to see if it works right. That's a good line load test.

 

If you don't feel good air flow, it can overheat and ruin the magnetron.

 

If you or a friend decide to work on it, we have *critical* safety, disassembly, and troubleshooting info at our site, which is linked at our listing here on FixYa: http://tinyurl.com/yzjozk

Make sure unit is not plugged in. Use a Volt-Ohm Meter, on Ohms setting, and see if you have connection to the fuse holder. Put one meter lead on the BLACK ac wire, test the ac plug with the other lead (both sides) One should read. Do the same with the WHITE ac wire. One should read.If you get readings on both sides then AC Cord is good. Next check the fuse holder for signs of heat or dis-coloration. If found replace fuse holder. Always remember just because a fuse looks good does not mean it is good, and also I have replaced a fuse with a NEW bad fuse. It happens. To be sure test with meter.

MOM! When you say" Front Panel Door Seperates". Do you mean the front PLASTIC escuteon, or door cover? There is no seal as such like a gasket. The metal shield,or screen that you look through into your microwave is the seal. A microwave,( if it could be seen) is about the diameter of a pencil. It is neither gas, or liquid thus it cannot squeeze through openings smaller than it's diameter. So! the small openings or holes (That you look through) in the front screen of your microwave door are seen as solid metal by a microwave and the microwave is reflected back into the cavity. The only safety issue is damage to the screen.

Sounds like a mis-aligined, or defective door switch. I would suspect defective.

We don't have a layout for this one, but we repair these on a regular basis for customers nationwide with our guaranteed $39.95 service.

You can find more info at our site, linked here on Fixya: http://tinyurl.com/yzjozk

If your LG Solardome microwave oven is overheating a melamine plate within 30 seconds, there could be a few potential issues at play:

1. Power Settings: Check to see if the power settings on your microwave are too high. If it's set to a high power level, it can cause certain materials, like melamine, to overheat quickly. Try reducing the power level and see if that helps.
2. Plate Material: Melamine plates are not suitable for use in microwave ovens as they can overheat and potentially release harmful chemicals into your food. It's recommended to use microwave-safe dishes made of glass, ceramic, or microwave-safe plastic.
3. Microwave Performance: If the microwave is consistently overheating items within such a short time frame, it might indicate a malfunction. In this case, it's best to contact LG customer support or a certified technician to inspect and repair the microwave.
4. Placement and Usage: Ensure that the plate is placed centrally on the turntable and not touching the sides of the microwave. Also, avoid using the microwave for extended periods without interruption, as this can cause overheating.
5. Testing with Different Materials: Try using a microwave-safe ceramic or glass plate to see if the issue persists. If other materials heat up quickly as well, it could indicate a problem with the microwave itself.

I have a new Kitchen Aid Convection Microwave with air fryer. I've not yet used the air fryer, but today I put a pan with a roast and set to convection roast and turned it on. I put the aluminum foil over the top of the pan and it sparked. I don't know why this happened. I'd sure like someone to let me know.

Push clock button and press the Up/down buttons to change time to pm.

Remove the contaminated and fit a new Waveguide cover.

Here are the steps to remove the door cover from the door of your LG Microwave model LMHM2017ST:

1. Unplug the microwave from the power source.
2. Open the microwave door and locate the four screws on the inner edge of the door.
3. Use a Phillips screwdriver to remove the four screws.
4. Carefully separate the outer door panel from the inner door panel.
5. You will now see the door cover attached to the outer door panel.
6. Use a flathead screwdriver or plastic pry tool to gently pry the door cover off of the outer door panel. Start at one corner and work your way around the edge.
7. Once the door cover is removed, you can replace it with the brushed silver cover from the new door.
8. To reassemble the door, simply snap the new cover onto the outer door panel and then reattach the outer door panel to the inner door panel using the four screws you removed earlier.

Make sure to be careful when removing the door cover, as it can be fragile and may break if handled roughly.

This is Microwave Oven! https://www.fixya.com/support/r29874712-repairing_microwave_ovens ..