TM 5-3610-287-24
Organizational Troubleshooting (Cont)
Table 2-3.
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
21.
EXHAUST FAN DOES NOT OPERATE (CONT)
Step 3. Unplug exhaust fan. Remove switch cover plate and
partially remove switch. Plug in exhaust fan. Test
voltage across switch terminals. Readings should be 0 Vac
with switch ON and 110 10 Vac with switch OFF.
If readings are not correct, replace ON/OFF switch
If readings are correct, replace exhaust fan motor
22. WALL HEATER DOES NOT OPERATE.
WARNING
HIGH VOLTAGE. When working on high voltage
components, always have an additional person
present. Keep one hand away from equipment to
reduce hazard of current flowing through vital
organs of body. Remove all jewelry from
fingers, wrists, and neck before working on
electrical components. Failure to observe this
warning may result in death or serious burns.
Check that both HEATER circuit breakers are set to ON.
Step 1.
Set both HEATER circuit breakers to ON.
Step 2.
Set both HEATER circuit breakers to OFF. Remove wall
heater control knob and grill. Check for loose or broken
wires.
Repair or replace wires.
Step 3.
Set both HEATER circuit breakers to ON. Test voltage
across wall heater input wires. Reading should be 208 10
Vac.
Troubleshoot circuit breakers (malfunction 14).
