PAGE 13
FOR SERVICE TECHNICIAN’S USE ONLY
DO NOT REMOVE OR DES
TROY
8.
Remove the white connector from the drive
motor switch. See Figure 9.
9.
Remove the bare copper wire terminal from
pin 5 of black drive motor switch. See Figure 10.
10.
Using Figure 10 and the Strip Circuit on
page 22, check for the resistance values of
the motor’s Main and Start winding coils as
shown in the following table.
NOTE:
Main and Start winding coils must be
checked at the motor.
Winding
Resistance
in ohms
Contact Points
of Measurement
MAIN
1.4–2.6
Lt. blue wire in back at pin 4
and bare copper wire terminal
removed from pin 5 of black
drive motor switch
START
1.4–2.8
Lt. blue wire in back at pin 4
and bare copper wire terminal
on pin 3 of black drive
motor switch
If the resistance at the motor is correct,
there is an open circuit between the motor
and CCU. Go to step 11 to check for belt
switch problem.
If the Start winding resistance is much
greater or less than the values listed in the
previous table, replace the motor.
11.
Check the belt switch by measuring
resistance between the two light blue wires,
as shown in Figure 11, while pushing up the
belt switch pulley.
If the resistance reading goes from open to a
few ohms as pulley arm closes the switch, belt
switch is good. If not, replace the belt switch.
If belt switch is good and there is still an open
circuit, check and repair the main wiring harness.
12.
Reassemble all parts and panels.
13.
Plug in dryer or reconnect power.
14.
Perform steps under “Install Diagnostics”,
page 5, to verify repair.
TEST #4: Heat System
This test is performed when one or more
of the following situations occurs:
3
Dryer does not heat
3
Heat will not shut off
3
Display flashes L2 (electric only)
This test checks the components making up
the heating circuit. The following items are
part of this system:
Figure 9 - Remove white connector.
White
Connector
Drive Motor
Switch
Main Winding:
Lt. Blue Wire in Back
and Bare Copper Wire
(5 position)
Start Winding:
Lt. Blue Wire in Back and
Bare Copper Wire
(3 position)
Figure 10 - Main and start winding measure points.
Drive Motor
Switch
Figure 11 - Checking the belt switch.
Belt Switch
Tension Pulley
Belt Switch
Lt. Blue Wires
(Back and 4 Position)
