TM 5-3610-287-24
Organizational Troubleshooting (Cont)
Table 2-3.
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
8.
NO HOT WATER FROM WATER TANK.
Check that IMMERSION HEATER switch is ON.
Step 1.
Set IMMERSION HEATER switch to ON. Wait 20 minutes and
test water temperature.
Step 2.
Remove lower cover from bottom of water tank and check that
thermostat is set to proper temperature.
Set thermostat to proper temperature.
Wait 20 minutes
and test water temperature.
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.
Step 3.
Set IMMERSION HEATER switch to OFF.
Remove wall plate
under sink and disconnect black wire
leading to immersion
to ON. Test voltage
heater. Set IMMERSION HEATER switch
across white and black wires leading
to immersion heater.
Reading should be 110 10 Vat.
If reading is O Vat, troubleshoot ON/OFF switch
(malfunction 19).
Step 4.
Set IMMERSION HEATER switch to OFF. Connect black wire at
wall plate. Partially remove immersion heater (para 2-44).
Remove black wire from immersion heater. Set IMMERSION
HEATER switch to ON. Test voltage across white and black
Reading should be 110 10 Vat.
wires at immersion heater.
If voltage is 0 Vac, replace wiring from wall plate to
immersion heater.
If voltage is 110 10 Vac, replace immersion heater
