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Troubleshooting Guide (cont'd)
Operational Conditions
SMELLY WATER HIGH TEMPERATURE SHUT OFF SYSTEM
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 com_0,l,aint 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. a concentration of sulfate in the supply water.
b. little or no dissolved oxygen in the water.
c. a sulfate reducing bacteria within the water heater. (This
harmless bacteria is non-toxic to humans.)
d. 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 filtering conditioning equipment be considered to
eliminate the water problem.
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
"Wh-ing Diagram" section, then the waterheater will have a
hi-limit on both the upper and lower thermostats. Follow
the instructions to reset the hi-limlt behind the upper and
lower access panels.
• Before beginning, turn "OFF" electrical power supply to the
water heater.
1
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
akWARNING
HYDROGEN GAS: Hydrogen gas can be produced in a
hot water systemthat hasnot been usedfor a long period
of time (generally two weeks or more). Hydrogen gas is
extremely flammable and explosive.To prevent the possi-
bility 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
dishwasheror washing machine). If hydrogengas is pre-
sent, there will probably be an unusualsound similar to
air escapingthrough the pipe as the hot water faucet is
opened. There must be no smoking or open flame near
the faucet at the time it isopen.
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.
AWARNING ]
HAZARD OF ELECTRICAL SHOCKI Before removing[
any access panels or servicing the water heater, make I
sure the electrical supplyto the water.heater is turned I
"OFF". Failure to do this could result m DEATH, SERI-
OUS BODILY INJURY,OR PROPERTY DAMAGE.
• Remove the two screws securing the access panel and remove
panel.
• Remove the insulation block to expose the opening.
• Reset the high limit by pushing in the red button marked
"RESET".
O _ 1RESET BUTTON
runner
• Replace the insulation block so that it completely covers the
thermostat and element.
• Replacethe accesspanel.
• Turn "ON" electric power to the water heater.
A CAUTION . ]
If the high limit mu_n,.call Sears Service I
Department to find out why the high hmit turned "OFF" ]
the electric power. ]
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