While you wait for answers, we may have found some information which could help you.
Click here for Sharp Microwave Turntablemy sharp r957 microwave not giving heat?
Sharp r-953 stopped working?
My Sharp Carosel Model R-5A98 blows its internal 20 amp fuse. Any idea?
is it safe to replace a magnatron in a sharp convection oven ??
Microwave, Sharp R 957 not heating?
Sharp Microwave oven Model R-330J(S) keypad problem?