While you wait for answers, we may have found some information which could help you.
Click here for Sharp Convection ExactlyMy Sharp Carosel Model R-5A98 blows its internal 20 amp fuse. Any idea?
Microwave, Sharp R 957 not heating?
fuse replacement?
Sharp r-953 stopped working?
Sharp Microwave oven Model R-330J(S) keypad problem?
how can i stop my sharp r 1480 microwave from turning on for no reason all ?