Brand: SHARP
Category: Home Appliances
Document Type: Parts/Service
Language: EN
Parts/Service for R-350Y(S)
Uploaded: Nov. 21, 2025, 8:30 p.m.
Manual Publish Date: 2011-01-01
This manual provides detailed information for servicing the SHARP R-350Y(S) Microwave Oven. It covers general precautions, warnings, product specifications, appearance views, operation sequences, component functions, troubleshooting, test procedures, circuit diagrams, and parts lists. Key sections include safety warnings regarding high voltage and microwave radiation, procedures for handling electronic components, and detailed instructions for component replacement and adjustment. The manual also provides a troubleshooting guide with a comprehensive table mapping problems to potential causes and required tests. Specific test procedures for components like the magnetron, switches, fuses, and motors are outlined. Electrical schematics and pictorial diagrams are included for reference.
Troubleshooting and error codes
| CONDITION | PROBLEM | POSSIBLE CAUSE AND DEFECTIVE PARTS | CK = Check / RE = Replace | |||||||||||||||||||||
| MAGNETRON | INVERTER UNIT | 1ST. LATCH SWITCH | 2ND. INTERLOCK RELAY CONTROL SWITCH | TEMPERATURE FUSE (OVEN) | MONITOR SWITCH | TURNTABLE MOTOR | FAN MOTOR | FUSE F10A | NOISE FILTER | TOUCH CONTROL PANEL | SHORTED WIRE HARNESS | POWER SUPPLY CORD | OPENED WIRE HARNESS | FUSE F1 ON P.W.B. | KEY UNIT | MISADJUSTMENT SWITCH | HOME FUSE OR BREAKER | BLOCKED COOLING FAN | BLOCKED VENTILATION | HUMIDITY SENSOR | WALL OUTLET | OVEN LAMP | ||
| OFF | Home fuse blows when power supply cord is plugged into wall outlet. | O | ||||||||||||||||||||||
| OFF | FUSE F10A blows when power supply cord is plugged into wall outlet. | O | O | O | O | O | ||||||||||||||||||
| ON CONDITION | Display does not show anything when power supply cord is plugged into wall outlet. | O | O | O | O | O | O | O | OVEN LAMP | |||||||||||||||
| ON CONDITION | Display does not operate properly when STOP/CLEAR pad is touched. (Display appears.) | O | O | O | O | O | ||||||||||||||||||
| ON CONDITION | Oven lamp does not light at door opened. (Display appears.) | O | O | O | O | O | ||||||||||||||||||
| ON CONDITION | Oven does not start when the START pad is touched. (Display appears) | O | O | O | O | O | O | O | ||||||||||||||||
| ON CONDITION | Oven lamp does not light (Display appears.) | O | O | O | O | O | ||||||||||||||||||
| ON CONDITION | Fan motor does not operate. (Display appears.) | O | O | O | O | O | O | O | ||||||||||||||||
| ON CONDITION | Turntable motor does not operate. (Display appears.) | O | O | O | O | O | O | |||||||||||||||||
| ON CONDITION | Oven or any electrical parts does not stop when cooking time is 0 or STOP/CLEAR pad is touched. | O | O | O | O | O | O | O | ||||||||||||||||
| ON CONDITION | Oven seems to be operating but little or no heat is produced in oven load. (Microwave power level is set at 100%) | O | O | O | O | O | O | O | ||||||||||||||||
| SENSOR COOKING | Oven does not seems to be operating properly when 90%~10% is set. (Oven operates properly at 100% and then the STOP/CLEAR pad is touched the oven stops.) | O | O | O | O | O | O | O | ||||||||||||||||
| SENSOR COOKING | Oven goes into cook cycle but shuts down before end of cooking cycle. | O | O | O | O | O | ||||||||||||||||||
| SENSOR COOKING | Humidity sensor does not end during Sensor cooking condition. (Oven doesnot shut off after a cup of water is boiling by sensor cooking.) | O | O | O | O | O | ||||||||||||||||||
| SENSOR COOKING | Oven stops at 16 sec. after starting. | O | O | O | O | |||||||||||||||||||