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 TM 55-1905-219-14-8
4-5. GENERAL (Continued).
Table 4-18. Washer/Dryer Troubleshooting (Continued.)
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
Step 5. Timer does not advance.
No current to timer motor terminal when contact should be closed per
timer sequence chart. Check timer motor for operation or check ohms
resistance of motor.
18.
No heat - drum rotates.
Step 1. Inoperative heating element.
Check OHMS resistance and replace if necessary.
Step 2. Inoperative timer.
Check continuity through timer and replace if necessary.
Step 3. Fabric selector.
Check fabric selector. If set on NO HEAT, advise user.
Step 4. Heat control thermostat.
Check continuity through thermostat per wiring diagram in paragraph
4-41 and operating temperature limits. If improper, replace. An open
thermal fuse usually indicates permanently closed contacts in the
control thermostat.
Step 5. Motor speed switch.
The motor speed switch must be closed to provide a complete circuit
for the heat source. Use a 240 volt test light or voltmeter to test for a
closed switch circuit with the motor in operation. R to R motor
terminals with the harness leads in position should measure 0 volts or
a NO LIGHT condition. A 200 + volt indication or bright light indicates
an open speed switch contact and the motor switch should be
replaced.
4-73
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