Kenmore The Economizer(TM) 6 Compact Electric 153.31604 - Manual (Page 19)

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Smelly water may be eliminated or reduced in some water
heater models by replacing the anode rod(s) with one of less
active material, and the chlorinating the water heater tank and
all water lines. Contact the local Sears Service Center for further
information concerning an Anode Replacement Kit #9001453
and this Chlorination Treatment. Anode replacement and
chlorination of the tank are not covered by the water heater’s
limited warranty.
If smelly water persists, after anode replacement and chlorination
treatment, you should consider chlorinating or aerating your
water supply.
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.
1. Before beginning, turn “OFF” electrical power supply to the
water heater.
FIGURE 30.
2. Remove the screw(s) securing the access panel and remove
panel.
3. Remove the insulation.
4. Reset the high limit by pushing in the red button marked
“RESET”.
FIGURE 31.
5. Replace the insulation 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.