3-23. WATER HEATER OPERATING LIMIT AND HIGH-LIMIT CONTROLS
This task covers:
General Safety Instructions
General mechanic's tool set
High voltage is present on this equipment.
Do not perform maintenance with power on.
MOS 63J (1)
Death or serious injury may result.
Operating/high limit relay
Ensure water heater is cold before servicing
Thread sealer compound
the high-limit temperature control. The
(Item 5, App C)
water vessel becomes hot during operation
and burns or bodily injury may result from
contact with the water heater before it
cools. Allow water heater to cool before
servicing the high-limit temperature control.
TM 10-3510-209-10, Tarp assembly removed.
Remove cap (1), retainer (2), and cover plate (3) from high-limit control (4).
Tag and disconnect two wires (5).
Loosen conduit nut (6) on each end of conduit (7) and slide nuts toward center of conduit.
Open inspection plate (8) and pull wires until wires do not extend beyond end of conduit (7).