20 Most Recent LG LMV1813ST Microwave Oven - Page 3 Questions & Answers

Check the fuse for the magnetron

What is it that you are losing ? You can set the power level by using the marked touchpads on the touchpanel, much like setting the volume on a TV. If you do not change the power setting and it is taking a long time to heat things or intermittently fails to, that is usually a sign that the Magnetron has reached its use by date and needs to be replaced. Not always an economical proposition unfortunately as spare parts are often exorbitantly priced. Before removing the cover of the oven in attempt to carry out any maintenance such as replacing the Oven cavity lamp, make sure the oven is disconnected from the power point ! The voltages in a microwave oven ARE LETHAL !

Check microswitches in the latch assembly.

turntable drive may be fouling on cabinet. Take out the table and see if it is still slow. To centre the drive- take the panel off the bottom, you may have to cut the metal the first time

take cover off there are plastic catches who could have wear and tare

First, check your users manual for proper programming functions. Then either return the oven to the dealer for a replacement, if their policy allows it or contact a factory authorized dealer to service it under the warranty policy.

try this manual i found
https://www.manualslib.com/manual/765799/Lg-Lmv1683st.html?page=34

t26925500-lg_oven_f11_code

Disconnect power and wipe down with vinegar and baking soda solution. Then plug in and heat the same solution for a minute or two. This should take that smell away.

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AC fuse is located just near mains cord ends up inside the top cover,it is mounted on small PCB,DC fuse is not used generally only surge protector MOV is mounted on main PCB for safety of PCB assy.

Check the supply of HT transformer if ok then check HT diode by replacement still not ok then replace magnatron.

Noise may be due to turn table motor or cooling fan,watch and diagnose,if turn table motor is noise than replacement is solution,in the case of fan noise clean & oil it.

Problem is due to touch key assembly,get it replaced ,microwave will work perfectly.

Problem is due to faulty power supply in the PCB assembly,if you are technical person check the power supply components other wise consult technical person.

Get replaced the magnatron,this problem is due to faulty magnatron .

you can get the switches but you will need to disassemble the microwave. what makes you believe it is the switches?

Yes there is. go online and search for your model number parts. I like ereplacemant, but thee are several to choose from.

https://www.manualslib.com/manual/765799/Lg-Lmv1683st.html?page=15&term=fuse&selected=1

check the power plug or replace the breaker.

I would suggest unplugging it and counting to 10, then plugging it back in.

If you need further assistance, please feel free to contact me by email.

http://www.microwavecontrol.com