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D. An excess of active hydrogen in the tank. This is caused by
corrosion protective action of the anode.
Smelly water may be eliminated or reduced by chlorinating the water
heater tank and all hot water lines. Contact the local Sears Service
Center concerning this Chlorination Treatment. Chlorination of the
tank is not covered by the water heater’s warranty.
If smelly water persists after this chlorination treatment, it may be
necessary to chlorinate or aerate your water supply to eliminate the
problem.
Do not remove the anode leaving the tank unprotected. By
doing so, all warranty on the water heater tank is voided.
“AIR” IN HOT WATER FAUCETS
HYDROGEN GAS: Hydrogen gas can be produced in a hot
water system that has not been used for a long period of time
(generally two weeks or more). Hydrogen gas is extremely
flammable and explosive. To prevent the possibility of injury
under these conditions, we recommend the hot water faucet be
opened for several minutes at the kitchen sink before any
electrical appliances which are connected to the hot water
system are used (such as a dishwasher or washing machine).
If hydrogen gas is present, there will probably be an unusual
sound similar to air escaping through the pipe as the hot water
faucet is opened. There must be no smoking or open flame
near the faucet at the time it is open.
RUMBLING NOISE
In some water areas, scale or mineral deposits will build up on
your heating elements. This buildup will cause a rumbling noise.
Follow “Element Cleaning/Replacement” instructions to clean
and replace the elements.
HIGH TEMPERATURE SHUT OFF SYSTEM
The water heater has a high limit shut off system with a reset
button located on the thermostat.
Follow the resetting instructions which refer to the high limit
behind the access panel.
NOTE: If your water heater is connected to an “Off Peak” Clock,
and uses the “3 wire lead” wiring diagram in the “Wiring Diagram”
section, then the water heater will have a high limit on both the
upper and lower thermostats. Follow the instructions to reset the
high-limit behind the upper and lower access panels.
1. Before beginning, turn “OFF” electrical power supply to the
water heater.
FIGURE 44.
2. Remove the two screws securing the access panel and
remove panel.
3. Remove the insulation cap with handle.
4. Reset the high limit by pushing in the red button marked
“RESET”.
FIGURE 45.
5. Replace the insulation cap with handle so that it completely
covers the thermostat and element.
6. Replace the access panel.
7. Turn “ON” electric power to the water heater.
If the high limit must be reset again, call Sears Service Department
to find out why high limit turned “OFF” the electric power