I need a manual for the logic l20ms14 microwave please

Possibly the model you have, but unsure.

https://www.manualslib.com/manual/1353166/Logik-Rsh-010910-018.html

If you wish to get some details about microwave oven and its working ; check the site linked here. Pull up older posts.
http://electro-medical.blogspot.com/

The first step to finding a solution to this problem would be to post it in the correct section. This is in the microwaves section.

I may still be able to help if you can provide the model of your "Logic tv dvd combo"

It is a logic problem or at least electrolytic capacitors that dim the display too far. The display could be repaired if it isn't a ic (logic) problem if it is then you need the whole display replaced

It seems this has been happening over the last few years. I am a retired appliance tech. My 1870 also started the 59 second routine, Also in a motor home. Pure logic. Had to be the board. New board same results. So now I need to run down a parts manual and possibly service manual, and get the damper switch and motor refered to in earlier posts. Changing out the board was fairly simple. Dropping the unit to change out the other components sounds like it will be a tad bit more difficult.

Replace the door switches.

Sorry - This may have done serious damage to the control logic.

This device will need professional repair and it may be cheaper to replace the oven.

Hi, you will need to replace the control board. it has developed a program fault. the logic chips are damaged.

Hi and welcome to FixYa,

Your described problem indicates that the logic circuitry in the main controller board is faulty. Since the logic circuitry is integral to the board, it would require an assembly replacement. On most brands/models, the main controller board is directly behind the display panel. In some instances, it could be a stuck key/button hence the logic would not reset.

Good luck and thank you for using FixYa.

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Whirlpool Microwave/Hood Combination manuals, user manuals, owners ...
Whirlpool Microwave Hood Combination MH7140XF, YMH7140XF User Guide Get This Manual .... Please help find the manual for this Black & Decker Convection Oven ...
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