TM 10-3510-220-24
2-37.
WATER HEATER ELECTRIC CONTROL ASSEMBLY
This task covers:
a . T e st
b. Service
c. Repair
INITIAL SETUP
Equipment Condition:
Tools
TM 10-3510-220-10, Tarp assembly removed.
General mechanic’s tool kit
General Safety Instruction
WARNING
Material/Parts
High voltage is present on this equipment. Do
Wiping cloth (Item 3, App C)
not perform maintenance with power on.
Death or serious injury may result.
Thread sealing compound
(Item 5, App C)
Drycleaning solvent
(Item 5, App C)
TEST
1.
2.
3.
4.
5.
NOTE
Water heater will shut down and alarm will sound if power fails, water
temperature is too high, water level is too low, fuel runs out or is cut off,
or ignition fails.
Prepare water heater for operation. (Refer to TM 10-3510-220-10.)
Turn on fuel and power.
Wait about 20 seconds. If audible alarm sounds, press reset button and repeat procedure or
refer to troubleshooting.
Observe unit for proper temperature rise and regulation as water is heated.
Observe that temperature gage indicates proper temperature when shut down occurs after
maximum temperature is reached.
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