Motor Test Cord; Drive Motor Test; Centrifugal Switch; Air Shutter Adjustment - Maytag MDE/MDG21PDA Service Manual

Troubleshooting Procedures
To avoid risk of electrical shock, personal injury or death, disconnect power to unit before servicing, unless testing
requires power.
Winding Terminal
Start 3
Run 5

Motor Test Cord

A motor test cord may be used to electrically check
operation of the various electrical components without
removing them from the unit. Testing in this manner
determines whether or not the part will function
independently of other electrical components. In order to
make an accurate test, proper connection of the motor
test cord is important.

Drive Motor Test

The motor may be checked in the dryer or removed and
checked.
Two test leads are required to check operation of the drive
motor. To check the motor for operation, hook the test
cord to terminals 4 and 5.
©2004 Maytag Appliances Company
!
WARNING
Terminal Ohms
4 3.00
4 2.25
16022904 Rev. 0

Centrifugal Switch

Checking heater/gas valve and motor:
1. Disconnect the wire harness from the motor.
2. Place ohm meter leads to terminals 1 and 2.
3. With your thumbs, depress the BROWN disc
located behind the motor switch on the motor
shaft. The BROWN disc actuates the lever of
the motor switch when the motor is at rest. At
optimum motor speed, the disc moves away from
the switch lever. When the disc is pressed in
toward the windings, the actuator arm of the
centrifugal switch will be relaxed. This allows the
contacts to close, completing the heater circuit.
If no continuity is found when the disc is
depressed, change the centrifugal switch.
Motor
Switch
Side View of Motor

Air Shutter Adjustment

The air shutter has been
stamped "LP" and "N" (for
Natural). Loosen the screw
holding the shutter, rotate the
shutter until the end of the slot
(labeled for the gas to be used)
contacts the screw. Tighten the
screw to lock the shutter in
place.
Gas Type Natural
BTU Per 1050
Cu. Ft
3.5
Pressure
Switch
Specific 0.65
Gravity
Orifice
41
Size
"Brown" Disc
Switch Actuator
LP
2050
11
1.53
53
15