Maytag MDC4650AW Series, Service Manual

Page: 17 / 54

©2006 Maytag Services
16026945 17
Disassembly Procedures
!
WARNING
To avoid risk of electrical shock, personal injury, or death, disconnect electrical power source to unit and discharge
capacitor through a 10,000 ohm resistor before attempting to service, unless test procedures require power to be
connected. Ensure all ground wires are connected before certifying unit as repaired and/or operational.
The following paragraphs describe how to disassemble
unit under test. Disassembly to some extent is required
to install unit, to perform troubleshooting procedures, and
to remove and replace failed components.
Component names used throughout disassembly
procedures are the same as those used in Parts
Manuals.
For quicker reassembly, disassemble unit under test only
to extent necessary to troubleshoot and repair. Unless
noted, reassembly is opposite of disassembly.
Technical Sheet
The Dishwasher Technical Sheet is located behind the
Toe Panel. The Schematic Diagram is unique to each
model and contains the following:
Timing Sequence Chart
Load Readings
Component Specifications
Manual Function Test
Field Service Test
Electrical Schematic
WARNING
!
To avoid risk of personal injury or death due to electrical
shock, ground wires and wires colored like ground wires
are
NOT to be used as current carrying conductors. The
standard accepted color coding for ground wires is
green or green with a yellow stripe . Electrical
components such as the water valve and motor are
grounded through an individual wire attached to the
electrical component. Ground wires should not be
removed from individual components while servicing,
unless the component is to be removed and replaced. It
is extremely important to replace all removed ground
wires before completing service.
Foil Bottom
Removal
Partial removal of Foil Bottom will allow access to the
Water Valve, Float Switch Assembly, Electrical Junction
Box, hoses, thermostats, Start Capacitor and Motor/
Pump Assembly.
1. Disconnect power to the machine.
2. Lay down a protective pad. Carefully tilt the unit on its
back, onto the protective pad. Remove 2 fasteners
from the locations shown below .
3. Partially remove the Foil Bottom by folding down to
access the Water Valve, Float Switch Assembly,
Electrical Junction Box, hoses, thermostats, Start
Capacitor and Motor/Pump Assembly as shown.