TM 5-3610-293-13&P
4-10.
UNIT TROUBLESHOOTING. - Continued
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
7b. No Hot Water.
NOTE
Wait 15 minutes between each test. Heater requires time to bring water up
to desired temperature.
Step 1.
Check Water Heater thermostat (2) setting.
Set thermostat knob to desired temperature. Do not set higher than 160°F.
Step 2.
Check water heater. Unplug sink assembly from wall outlet, remove temperature indicator knob and cover
on water heater (3), plug sink assembly into wall outlet, and test for 110v AC at Water Heater input wires.
If 110v AC is not present, replace switch S5. (Refer to paragraph 4-22e.)
If 110v AC is present, replace water heater. (Refer to paragraph 4-22h.)
7c. Fresh Water Pump Will Not Operate.
Step 1.
Check fuse F1 (4) for continuity.
If open, replace fuse F1.
If 0 ohms, replace power supply (5). (Refer to paragraph 4-22f.)
Step 2.
Check lamp DS4.
If not lit, replace switch S3 (6). (Refer to paragraph 4-22d.)
If lit, replace fresh water pump (7). (Refer to paragraph 4-22b.)
4-15
