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Troubleshooting
Guide
(cont'd)
Operational
Conditions
SMELLY
WATER
HIGH
TEMPERATURE
SHUT
OFF
SYSTEM
The water heater has a high limit shut off"system with a reset
button located on the thermostat.
In each water heater there is installed at least one anode rod (see
parts section) for corrosion protection of the tank. Certain water
conditions will cause a reaction between this rod and the water.
The most common complaint associated with the anode rod is
one of a "rotten egg smell". This odor is derived from hydrogen
sulfide gas dissolved in the water. The smell is the result of four
factors which must all be present for the odor to develop:
• a concentration of sulfate in the supply warer.
• little or no dissolved oxygen in the water.
• a sulfate reducing bacteria within the water heater. ('['his
harmless bacteria is non-toxic to humans.)
• an excess of active hydrogen in the tank. This is caused by the
corrosion protective action of the anode.
Smelly water may be eliminated or reduced in some water heater
models by replacing the anode(s) with one of less active material,
and then chlorinating the water heater tank and all hot water
lines. Contact the local Sears Service Center for further informa-
tion concerning an Anode Replacement Kit #9001453 and this
Chlorination Treatment.
If the smelly water persists after the anode replacement and chlo-
rination treatment, we can only suggest that continuous chlori-
nation and f_ltering conditioning equipment be considered to
eliminate the waterproblem.
Do not remove the anode leaving the tank unprotected. By
doing so, all warranty on the water heater tank is voided.
Follow the resetting instructions which refer to the high limit
behind the access panel.
•
Before beginning, turn "OFF" electrical power supply to the
water heater.
%
AWARNING
HAZARD
OF
ELECTRICAL
SHOCK!
Before
removing
any access panels
or servicing
the water
heater,
make
sure the
electrical
supply
is turned
"OFF"
to the water
heater.
Failure
to do this could
result
in DEATH,
SERIOUS
BODILY
INJURY,
OR
PROPERTY
DAMAGE.
"AIR"
IN HOT
WATER
FAUCETS
AWARNING
HYDROGEN
GAS: Hydrogen
gas can be produced
in
a hot water
system that has not been used for a long
_eriod
of time
(generally
two
weeks
or more).
Hydrogen
gas is extremely
flammable
and explosive.
To prevent the possibility
of injury under these condi-
tions,
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.
• Remove the two screws securing the access panel and remove
panel.
• Remove the insulation block and pad.
• Reset the high limit by pushing in the red button marked
"RESET".
_
RESET BUTTON
• Replace the insulation block and pad so that it completely
covers the thermostat and element.
• Replace the access panel.
• "lhrn "ON" electric power to the water heater.
A CAUTION
If the high limit must be reset again, call the Sears
Service Center to find out why the high limit turned
OFF" the e ectr c power.
19
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