Table Of Contents - Wolf MWD24-2 Service Manual

Drawer Microwave

TABLE OF CONTENTS

Section 1 - General Information
Introduction ........................................................................1-2
Important Safety Information ............................................1-2
Technical Assistance ........................................................1-2
Table of Contents ..............................................................1-3
Warranty Information ........................................................1-4
Model Number Key ............................................................1-5
Model Configurations ........................................................1-6
Section 2 - Installation Information
Electrical Requirements ....................................................2-2
Clearances and Dimensions ............................................2-3
Installation Procedures ......................................................2-4
Section 3 -Theory and Operation
User Operation ..................................................................3-2
Set Clock ..........................................................................3-2
Timer ................................................................................3-2
Stop/Clear Feature ............................................................3-3
Open/Close Drawer Microwave ........................................3-3
Time Cooking ....................................................................3-3
Setting Power Level ..........................................................3-4
Sensor Cooking ................................................................3-4
Sensor Popcorn and Sensor Reheat Feature ..................3-5
To Sensor Cook ................................................................3-5
Defrost Feature ................................................................3-6
Manual Defrost ..................................................................3-6
Reheat Feature ................................................................3-6
Micro Warm Feature ..........................................................3-6
Manual Cooking / Multiple Sequence Cooking ................3-7
SetUp/Help Feature ..........................................................3-7
Start/Add Minute ................................................................3-8
More or Less Time Adjustment ..........................................3-8
Control Lock ON/OFF Feature ..........................................3-8
Audible Signal Elimination ................................................3-9
Auto Start ..........................................................................3-9
Demonstration Mode ......................................................3-10
Technical Operation ........................................................3-10
Cooking Condition ..........................................................3-11
Schematic (Off Condition) ..............................................3-12
Sensor Cooking Condition ..............................................3-13
Cooking Sequence ..........................................................3-13
Humidity Sensor Circuit ..................................................3-14
Touch Panel Function ......................................................3-15
Description of LSI ............................................................3-16
(Models MWD24-2 / MWD30-2)
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Section 4 - Component Access and Removal
Warnings and Cautions ....................................................4-2
Precautions For Using Lead-Free Solder ..........................4-3
Microwave Measurement Procedure ................................4-4
Touch Control Panel Servicing ..........................................4-5
Drawer Microwave Disassembly ......................................4-6
Upper Cabinet Component Replacement ........................4-7
Cavity Light Replacement ................................................4-7
Power Cord Replacement ..................................................4-7
Switch (Stop, Monitor, Secondary Interlock) Removal ......4-8
Switch (Stop, Monitor, Secondary Interlock) Adjustment....4-9
Drawer Assembly and Choke Cover Removal ................4-10
Drawer Support Angle Removal ......................................4-10
Actuator Removal ............................................................4-11
Actuator Adjustment..........................................................4-11
Auto Drawer Removal / Installation ................................4-12
Rack Gear Removal ........................................................4-13
Major Control Components ............................................4-13
Section 5 - Troubleshooting Guide
Warnings and Cautions ....................................................5-2
Microwave Measurement Procedure ................................5-3
Touch Control Panel Test ..................................................5-4
Key Unit Test ....................................................................5-5
Relay Test ..........................................................................5-6
Defrost Test ......................................................................5-7
Open Fuse On PWB ........................................................5-8
AH Sensor Test ................................................................5-9
Magnetron Assembly Test ..............................................5-11
Microwave Output Power ................................................5-12
Thermal Cut-Out Test ......................................................5-13
Secondary Interlock Switch Test ....................................5-13
Stop Switch Test ..............................................................5-13
Monitor Switch Test ........................................................5-14
Blown Monitor Fuse Test ................................................5-15
Power Transformer Test ..................................................5-15
Section 6 - Wiring Diagrams
Harness Pinout Wiring ......................................................6-2
Power Unit Circuit ..............................................................6-3
Control Unit Circuit ............................................................6-4
Printed Wiring Board of Power Unit ..................................6-5
Printed Wiring Board of Control Unit ................................6-6
1-3
General Information
#813632 - Revision B - December, 2009
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