To Next PageTo Next PageWhat to do if Sharp R-403KK-T Microwave Oven seems to be operating but little or no heat is produced?
If your Sharp Microwave Oven seems to be running but isn't heating food properly, check the magnetron and high voltage capacitor.
What to do if Sharp R-403KK-T does not go into cook cycle when START pad is touched?
If your Sharp Microwave Oven does not start cooking when you press the START button, check for shorts or opened wiring.
What to do if Sharp Microwave Oven goes into DEFROST but food is not defrosted well?
If your Sharp Microwave Oven enters DEFROST mode, but the food isn't defrosting properly, you should check the cooking time and settings to ensure they are appropriate for the food you are trying to defrost.
General| Brand | Sharp |
|---|---|
| Model | R-403KK-T |
| Category | Microwave Oven |
| Language | English |
Details the method for performing a closed-door microwave leakage test.
Highlights severe electrical shock hazards from specific high-voltage components.
A chart correlating problems with possible causes and test procedures.
Steps to test the magnetron assembly for proper function and output power.
Instructions for testing the resistance and continuity of the power transformer.
Method for checking the high voltage rectifier for shorts or open circuits.
Procedure to test the high voltage capacitor for shorts or open circuits.
Steps to test temperature fuses and thermal cut-outs for continuity.
How to test the primary interlock switch for proper door-closed/open operation.
Test procedures for the door sensing switch and secondary interlock relay.
Steps to test the monitor switch for correct operation related to door interlocks.
Procedure for diagnosing and replacing a blown monitor fuse.
Guide for testing the touch control panel and identifying defective units.
Critical safety warnings for handling high voltage and microwave energy during servicing.
Procedure for removing and reinstalling the power transformer.
Steps for removing the high voltage rectifier and capacitor.
