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Before calling for service, check the following points to see if the
cause of trouble can be identified and corrected. Reviewing this
checklist may eliminate the need of a service call and quickly
restore hot water service.
The illustration in the Features and Components section of this
manual identifies the location of most of the heater components.
BE SURE TO TURN OFF THE ELECTRICITY (ELECTRICAL
DISCONNECT SWITCH) WHEN CHECKING EQUIPMENT.
NOT ENOUGH OR NO HOT WATER
1.
Be certain the electrical disconnect switch serving the water
heater is in the ON position. The pilot toggle switch on the
cabinet should be ON.
In some areas water heater electrical service may be
limited by the power company. If the heater operates on
a controlled circuit, heater recovery may be affected.
The optional manual override switches on the cabinet
front may be turned off, de-energizing the elements.
2.
Check the fuses.
The electrical disconnect switch usually contains fuses.
The water heater has fuses located behind the cabinet
front door. See "Features and Components" on page
7 for their location.
3.
If the water was excessively hot, and is now cold, the ECO
high limit switch may have activated.
See "Temperature Regulation" on page 17 for more
information on how to reset the ECO high limit controls.
Repeated activation of the ECO high limit switch should
be investigated by a qualified service technician or
qualified agency.
4.
The storage capacity and/or recovery rate of the water heater
may have been exceeded by a large demand for hot water.
See Table 2 on page 6 in this manual.
Large demands require a recovery period to restore
water temperature.
5.
Cold incoming water temperature will lengthen the time
required to heat water to the desired temperature.
6.
If the heater was installed when incoming water temperature
was warm, colder water creates the effect of less hot water.
7.
Sediment or lime scale may be affecting water heater operation.
See "Maintenance" on page 30 for details.
WATER IS TOO HOT
See "Temperature Regulation" on page 17.
TROUBLESHOOTING CHECKLIST
WATER HEATER MAKES STRANGE SOUNDS
1.
Sediment or lime scale accumulations on the elements causes
sizzling and hissing noises when the heater is operating.
The sounds are normal, however, the tank bottom and
elements should be cleaned. Refer to MAINTENANCE
section of this manual for details.
2.
Some of the electrical components of the water heater make
sounds which are normal ie. contactors will "Click" or snap as
the heater starts and stops.
LEAKAGE CHECKPOINTS
1.
Check to see if the drain valve is tightly closed.
2.
The apparent leakage may be condensation which forms on
cool surfaces of the heater and piping.
3.
If the outlet of the pressure relief valve is leaking, it may
represent one of the following:
• Excessive water pressure is the most common cause
of pressure relief valve leakage. Water supply systems
may, because of code requirements or such conditions
as high line pressure, among others, have installed de-
vices such as pressure reducing valves, check valves,
and back flow preventers. Devices such as these
cause the water system to be a closed system.
• Excessive water temperature. As water is heated, it
expands (thermal expansion). In a closed system the
volume of water will grow when it is heated. As the
volume of water grows there will be a corresponding
increase in water pressure due to thermal expansion.
Thermal expansion can cause intermittent tempera-
ture-pressure relief valve operation: water discharged
from the valve due to excessive pressure build up. This
condition is not covered under the limited warranty.
The temperature-pressure relief valve is not intended
for the constant relief of thermal expansion.
• Faulty temperature and pressure relief valve. A
properly sized thermal expansion tank should be in-
stalled on all closed systems to control the harmful ef-
fects of thermal expansion. Contact a local qualified
service agency to have a thermal expansion tank in-
stalled.
4.
Examine the flange area of the elements for gasket leakage.
Tighten the bolts or, if necessary, follow the WATER AND LIME
SCALE REMOVAL procedure in the MAINTENANCE section of
this manual to replace the gaskets.
IF YOU CANNOT IDENTIFY OR CORRECT THE SOURCE
OF MALFUNCTION:
1.
Place the water heater electrical disconnect switch in the OFF
position.
2.
Close the cold water inlet valve to the heater.
3.
Call the toll free number on the back cover of this manual for
further assistance.
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