My Sharp R-1874/1875 Microwave/Convection oven had the microwave quit. How can I fix it? Is it worth fixing? Thanks, Jim

Christophe Thompson

• 1224 Answers
• Posted on Dec 06, 2008

SOURCE: PROBLEM WITH SHARP R-1874TF CONVECTION OVEN

sometimes an over heat will shut down the oven for a little bit but lets look at other things
i dont believe the board to be bad but i do believe the heating element inside is fried or a wire got fried by heat
if you know how to use ohm tester i would check heating element and wireing first
then try to see if the timer gave out

SOURCE: how do I remove the door from our Sharp R-1874 microwave

Fixed the problem without any help from anyone. If you ask and ask and get no help I guess it is time to take on the problem and see if you can resolve it and I did. NO IT WAS NOT EASY but with a little thought and time over the last 2 days I did get the door changed. Thanks for letting me post even though I got NO help.

SOURCE: Turntable stop working along with microwave and convection oven

would be a door micro-swtch sharp part # Sharp Part Number: QSW-MA085WRE0

SOURCE: sharp R-1871 microwave/convection oven. Microwave will not work

This may be due to the microwave section not working. Check the high voltage diode if it is ok, replace the Magneton.

William Miller

• 9179 Answers
• Posted on Aug 30, 2009

SOURCE: I need a manual for Sharp Microwave/ Convection R7A85

You can download that here free.

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