Lmv 1680st will not heat

Check the fuse. Also check out the safety switch by the unit door. If not closed when door is closed, no power is applied to either the turntable or the tube.

Water. Water is a good conductor of heat. The boiler heats the water, a pump circulates it around the system and through the radiators where it loses heat. Cooler water returns to the boiler for re-heating.
http://www.waermecenter.de/

Ithnk you must check yo switches if there are still working fine but ithnk it may be the pc board faulty

The microwave runs intermittently. You should open it up and look at the connections to see if any have darkened or burn like signs. If you find that, you can either replace the (usually plastic) connection piece, or just remove it and reconnect the wires (that were housed in it), to their connection points. If you want, you can use electric tape to cover those metal wire connectors, but it's not necessary it nothing else is touching.

The service manual is here.

A buzz in the HV section is usually a shorted high voltage diode (a pretty cheap fix) or a defective magnetron (more costly).

Here are some links you or someone you know can use for test help, but read their safety warnings first:

http://www.gallawa.com/microtech/diode.html
(if it's not shorted or burned, it's probably okay)

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

http://www.gallawa.com/microtech/xformer.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.

I am sure, this YouTube video https://www.youtube.com/watch?v=nIdT4kS3noY will be helpful.

Admin: http://microwaveoven.co.in/

Hello,

if it does not power up, then it means its having a power problem. it might have worked fine in the past, but that's electronics for you. Power surge, irregular power supply, excess power supply, etc can affect the unit thereby not making it to power on.

This unit must have a power supply board in it where power enters from the mains. A capacitor, fuse, diode, etc may have been defective on the power board and maybe that's why its not making the unit turn on. There might also be some disconnection or something, inside the unit which is not making it to power on.

To actually find out what's wrong, you need to disassemble the unit with a screw driver and check what's wrong. You will be needing a meter in order to test the components on the power board, once you detect any bad component, you can make necessary replacement at any electronics accessories store withing our vicinity. This is the only way by which you can detect the problem.

Of course, testing the power board with a meter will require someone that has the ability. So it you can't, then you might be needing the help of a repairman or you can call a friend that has the ability to help you out.

I wish you the best of luck.

Take care.......

You can use to set the timing in order of the heat required. Also using the grade rating of the heating coupled with the time set, the food can be easily heated without burning.
To start with use low heat and long time, the try with medium heat and lesser time and then choose high heat and short time. You must be able to use the settings accordingg to your requirement.
Hope this advice helps

Hi


The water is not heating as the heating element has gone bad or a fuse has blown which is preventing heating element to turn on. To check the heating element you'll need to turn off the dishwasher, unplug it. After unplugging it check the heating element formineral deposit on it, clean the deposits using a soft brush and a cleaning solution(Don't scrub the elemnt hard). If this doesn't resolves the issue then remove the panel and examine all the wirin connections to the heating element. Now, use a multimeter and check for the resistance reading(ohms, Rx1) for the heating element. The multimeter should display between 1200-1600 ohms or 1.2K ohms. If it is less than 1200 then you'll need to get the heating element replaced. Also, check for any blown fuse around the element. This should resolve your issue.

Thanks

Daniel

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.