Maytag MEDB765FW W10240504 - Page 1

FOR SERVICE TECHNICIAN'S USE ONLY Voltage Measurement Safety Information When performing live voltage measurements, you must do the following:  Verify the controls are in the off position so that the appliance does not start when energized.  Allow enough space to perform the voltage measurements without obstructions.  Keep other people a safe distance away from the appliance to prevent potential injury.  Always use the proper testing equipment.  After voltage measurements, always disconnect power before servicing. IMPORTANT: Electrostatic Discharge (ESD) Sensitive Electronics ESD problems are present everywhere. Most people begin to feel an ESD discharge at approximately 3000V. It takes as little as 10V to destroy, damage, or weaken the main control assembly. The new main control assembly may appear to work well after repair is finished, but a malfunction may occur at a later date due to ESD stress.  Use an anti-static wrist strap. Connect wrist strap to green ground connection point or unpainted metal in the appliance -OR- Touch your finger repeatedly to a green ground connection point or unpainted metal in the appliance.  Before removing the part from its package, touch the anti-static bag to a green ground connection point or unpainted metal in the appliance.  Avoid touching electronic parts or terminal contacts; handle electronic control assembly by edges only.  When repackaging main control assembly in anti-static bag, observe above instructions. IMPORTANT SAFETY NOTICE - "For Technicians only" This service data sheet is intended for use by persons having electrical, electronic, and mechanical experience and knowledge at a level generally considered acceptable in the appliance repair trade. Any attempt to repair a major appliance may result in personal injury and property damage. The manufacturer or seller cannot be responsible, nor assume any liability for injury or damage of any kind arising from the use of this data sheet. Contents Whirlpool, Maytag, and Kenmore Control Panels.... 2-4 Diagnostic Guide 5 Activating the Service Diagnostic Mode 5 Key Activation & Encoder Test 6 Service Test Mode 6 Service Test Mode Chart 7, 8 Software Version Display 9 Fault/Error Codes 9, 10 Troubleshooting Guide 11 Troubleshooting Tests 12-22 Strip Circuits 23 Wiring Diagrams 24, 25 Component Locations 26 DPAORNTONTOR. EWM1O0V91E3O9R69DAESTROY PAGE 1