Question about Sharp R-303CW Convection / Microwave Oven
Posted by Anonymous on
The clock is part of the control board and cannot be repaired as a separate item. Most replacement control boards costs as much as
a new microwave.
Posted on Jul 19, 2014
Save hours of searching online or wasting money on unnecessary repairs by talking to a 6YA Expert who can help you resolve this issue over the phone in a minute or two.
Best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
Here's a link to this great service
Posted on Jan 02, 2017
A microwave can be dead for many reasons.
The fuse is normally located on the floor of the chassis behind the control panel or between the door switches.
If the fuse is good, it may be an open thermostat or thermal cutout (TCO) / thermal fuse on or near the magnetron or on top of the cavity / body of the oven.
If it goes dead for a while during or after cooking then comes back on, the magnetron is probably overheating and causing the magnetron thermostat to open.
Then when it cools, it closes the circuit and allows power through again.
When checking thermostats, if it has a hood fan thermostat, that should read open, as opposed to the others, which should read closed.
If it went dead almost immediately after pressing the Start pad, that's usually a shorted high-voltage capacitor.
If it went dead a few seconds after pressing the Start pad, that's usually a failing high-voltage transformer.
If it goes dead or blows the breaker when you plug it in or open or close the door, then there's a problem with a door switch or door switch mount.
If it's intermittent or random, it may be a bad connection, usually on the control board or a loose fuse holder, or even an intermittent fuse.
You should do a continuity test on the fuse while it's in the holder (with the microwave unplugged, of course) then turn the fuse by hand or take it out and put it back in, then test it again.
If you remove the fuse, then press the meter leads against the ends, it can allow internal contact to be made and make a bad fuse appear to be good.
If you or someone you know decide to look into it, we have critical safety information and disassembly information at our site, and our link is at our listing here on FixYa: http://tinyurl.com/yzjozk
We're happy to help and we appreciate your thoughtful rating of our answer.
Posted on Jun 23, 2008
mcdevito75 here, Best Bet, contact Sharp online, try sharp microwave oven.com Or in any store that sells Sharp microwave ovens get contact info off that package.
Posted on Jul 07, 2010
Tips for a great answer:
Jul 17, 2011 | Sharp R-510HW Microwave Oven
Hi, Microwave Oven Troubleshooting Tips
Here is a tip that will help you to figure out what is wrong with your Microwave Oven....
Microwave Oven Troubleshooting Tips
Aug 10, 2010 | Sharp R-1214 Microwave Oven
Jul 07, 2010 | Sharp R-303CW Convection / Microwave Oven
Feb 02, 2010 | Sharp R-1874 Convection/Microwave Oven
Jan 07, 2010 | Sharp R-303CW Convection / Microwave Oven
Nov 22, 2009 | Sharp R-303CW Convection / Microwave Oven
May 13, 2009 | Sharp R-303CW Convection / Microwave Oven
Jan 05, 2009 | Sharp R-1874 Convection/Microwave Oven
Dec 16, 2008 | Sharp Microwave Ovens
226 people viewed this question
Usually answered in minutes!
Step 2: Please assign your manual to a product: