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Troubleshooting
Guide (cont'd)
Operational
Conditions
HIGH
TEMPERATURE
SHUT
OFF SYSTEM
SMELLY
WATER
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 water,
• litde or no dissolved oxygen in the water.
• a sulfate
reducing
bacteria
within
the water
heater.
(This
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 ehJorinating
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 filtering conditioning
equipment be considered to
eliminate the water problem.
Do. not remove the anode leaving the tank unprotected. By
domg 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.
A WARNING
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.
• Remove the two screws securing the access panel and remove
panel.
• Open the flap of insulation to expose the opening.
• Reset the high limit
by pushing
in the red button
marked _RESET'.
RESET BUTTON
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.
• Fold the insulation back in place so that it completely covers
the thermostat and element.
• Replace the access panel.
• Turn _ON" electric power to the water heater.
19
•
A CAUTION
[
If the high limit must be reset again,
call the Sears I
Service Center to find out why the high limit turned ]
"OFF"
the electric power.
I
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