SECTION 5
COMPONENT TESTING
Before testing any of the components, perform
the following checks:
The most common cause for control failure
is corrosion on connectors. Therefore, dis-
connecting and reconnecting wires will be
necessary throughout test procedures.
All tests/checks should be made with a
VOM or DVM having a sensitivity of 20,000
ohms-per-volt DC, or greater.
•
•
Check all connections before replacing
components, looking for broken or loose
wires, failed terminals, or wires not pressed
into connectors far enough.
Resistance checks must be made with
power cord unplugged from outlet, and
with wiring harness or connectors discon-
nected.
•
•
Electrical Shock Hazard
Disconnect power before servicing.
Replace all parts and panels before operating.
Failure to do so can result in death or electrical shock.
DOOR SWITCH
Refer to page 4-2 for the procedure for ac-
cessing the user interface board, and to page
4-6 for accessing the door switch.
NOTE:
The door switch will be checked at the
user interface board.
1. Unplug dryer or disconnect power.
2. Turn off gas supply to dryer.
3. Access the user interface board.
4. Set the ohmmeter to the R x 1 scale.
5. Touch the ohmmeter test leads to plug
P8 pins 3 (white) and 4 (tan). The meter
should indicate an open circuit (infinite)
with the door closed, and a closed circuit
(0
Ω
) with the door open.
THERMAL FUSE & OUTLET
THERMISTOR
Refer to page 4-9 for the procedure for ac-
cessing the thermal fuse & outlet thermistor.
1. Unplug dryer or disconnect power.
2. Turn off gas supply to dryer.
3. Disconnect the wires or connector from
the component under test.
4. Set the ohmmeter to the R x 1 scale.
5. Touch the ohmmeter test leads to the
thermal fuse terminals. The meter should
indicate a closed circuit (0 Ω).
NOTE:
The
thermal fuse opens at 196
°
F (91
°
C).
6. Set the ohmmeter to the R x 100K scale.
7. Touch the ohmmeter test leads to the out-
let thermistor terminals. The meter should
indicate approximately 10k Ω ±20%.
Thermal Fuse
Outlet Thermistor
