• ** REMEMBER! **The microwave can still shock you even unplugged!!

    ALWAYS discharge the high-voltage capacitor first if you even think your hands will come close to any HIGH VOLTAGE components.

    Jeff mentions this: Anything in the high voltage ( magnetron, capacitor, diode, wires to and from ):
    ...Use a metal ( not the shiny chrome type ) screw driver with a insulated handle to short across ( touch both at the same time ) the terminals of the high voltage capacitor to discharge it.

    From Jeff's site: http://www.applianceaid.com/component-testing.php

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Convection not working in Sharp R1881LSY microwave/convection


Premium Member
Nov 12, 2021
Yuma AZ
Model Number
1-5 years
Microwave heating is fine, but convection does not heat. I tested several thermal cut offs and the heat element and they were fine. I'm looking for schematics and a tech manual for it, any ideas on where to find?
Brand: Sharp
Type: Microwave Oven
Description: 1.1 Cu. Ft. Over-the-range Microwave Oven
Model: R-1881LSY
Serial: 515632
Manufactured: August 2018
Hi, what was the result of this one:

I would help you but I have no experience working on microwaves, hopefully another tech or member can assist you.

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