Water Heater User Manual

Troubleshooting Guide (cont'd)
Operational Conditions
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.
• Replace the insulation block so that it completely covers the
thermostat and element.
• Replace the access panel.
• Turn "ON" electric power to the water heater.
HIGH TEMPERATURE SHUT OFF SYSTEM
The water heater has a high limit shut off system with a reset
button located in the upper thermostat.
Follow the resetting instructions which refer to the high limit
behind the upper access panel.
A CAUTION
If the high limit must be reset again, call Sears Service I
Department to find out why the high limit turned "OFF"
the e ectr c power•
NOT ENOUGH OR NO HOT WATER
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
hi-limit on both the upper and lower thermostats. Follow
the instructions to reset the hi-limit behind the upper and
lower access panels.
• 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
I sure the electrical supply to the water heater is turned
I "OFF". Failure to do this could result in DEATH, SERI-
I OUS BOD LY 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".
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RESET BUTTON
In a new installation, the water heater may not be properly
connected. Make sure the cold water supply valve is open.
Review and check piping installation. Make sure that the
cold water line is connected to the cold water inlet to the
water heater and the hot water line to the hot water outlet
on the water heater.
Make sure the electrical supply to your water heater is
"ON".
Check for loose or blown fuses in your water heater circuit.
Circuit breakers weaken with age and may not handle their
rated load and should be replaced.
Make certain the disconnect switch, if used, is in the "ON"
position.
Check to see the electric service to your house has not been
interrupted. If this is the case, contact the electric company.
Are the thermostats set to the desired temperature? See
"Temperature Regulation" section.
If you had experienced very hot water and now no hot water,
the problem may be due to the high temperature shut off
system. See "High Temperature Shut Off System" in
the "Troubleshooting" section.
During very cold weather, the incoming water will also be
colder and it will require a longer time to become heated.
The hot water usage may exceed the capacity of the water
heater. If so, wait for water heater to recover after abnormal
demand. Also examine pipes and faucets for possible water
leaks.
If you can not determine the problem, then call the Sears
Service Department.
WATER IS TOO HOT
Adjust the thermostat to a lower setting. See the "Temperature
Regulation" section.
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