Whirlpool MH2175XSB Service Guide - Page 3

TABLE OF CONTENTS General...1-1 Important Safety Information 1-1 Warning to In Home Service Professionals 1-2 Precautions To Be Observed Before and During Servicing to Avoid Possible Exposure to Excessive Microwave Energy 1-3 R.F. Leakage Test...1-4 Whirlpool Model Number Designations 1-5 Whirlpool Serial Number Designations 1-6 Model & Serial Number Label and Tech Sheet Locations 1-6 Specifications...1-7 Whirlpool Microwave Oven Warranty 1-10 Installation Information 2-1 Hood Fan Motor Mounting Positions 2-1 THEORY OF OPERATION...3-1 Air Flow Paths...3-1 COMPONENT ACCESS...4-1 Component Locations...4-1 Removing the Turntable Motor & Hood (Cooktop) Lamp Assembly 4-2 Removing the Control Panel & Control Board 4-4 Removing the Motor Capacitor and Line Fuse 4-6 Removing the Door Switches 4-6 Removing the Oven Cavity Lamp and Charcoal Filter 4-8 Removing the Oven Rack Retainers 4-9 Removing the Outer Cabinet 4-10 Removing the Thermostats and Thermistor 4-11 Removing the Magnetron 4-12 Removing the High-Voltage Transformer 4-13 Removing the High-Voltage Diode and Capacitor 4-14 Removing the Oven Cavity Lamp Socket 4-15 Removing the AC Line Filter 4-16 Removing the Hood Fan Motor and Humidity Sensor 4-17 Removing the Fuse Holder & Mounting Bracket 4-18 Removing the Door and Door Disassembly 4-19 COMPONENT TESTING...5-1 H.V. Transformer...5-1 Magnetron...5-2 H.V. Capacitor...5-2 H.V. Diode...5-3 iii