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Problem Possible Causes What To Do
Condensation This usually happens when This is normal. After the water in the tank warms
a new water heater is up, the condensation will disappear. If, however, the
filled for the first time. condition persists, examine the piping and fittings
for possible leaks.
Moisture from the products This is normal and will disappear in time. Excessive
of combustion condensing condensation can cause pilot burner outage.
on the tank surface.
An undersized water Use a water heater size that meets the requirements
heater will cause of your needs.
condensation.
Yellow flame Scale on top of the burner. Contact a qualified service technician to remove scale.
or soot
Flue or Combustion air inlet Remove obstruction or debris from flue or
openings are restricted. combustion air inlet openings on water heater jacket.
Not enough combustion or Proper operation of the water heater requires air for
ventilation air supplied to combustion and ventilation. See the Combustion and
the water heater location. Ventilation Air information in the “Installing The
Water Heater” section of this manual.
Air Shutter Adjustment Refer to the Adjustment Section in “Operating the Water
(LP models only) Heater”.
Pilot burner not Air in gas line. Contact a qualified service technician to purge the air
lighting from the gas line.
Pilot burner orifice clogged. The pilot burner should be cleaned or replaced by a
qualified service technician.
Pilot burner tube pinched or The pilot burner should be cleaned, repaired or
clogged. replaced by a qualified service technician.
Temperature dial not See the “Lighting The Water Heater” section of this
correctly positioned. manual.
Rumbling noise Scale and sediment Clean tank.
in tank.
Relief valve Pressure build up This is an unacceptable condition and must be
producing popping caused by thermal corrected. Contact the water supplier or plumbing
noise or draining expansion to a contractor on how to correct this. Do not plug the
closed system. relief valve outlet.
Water is too hot The gas control (thermostat) ● See the “Water Temperature Setting” of The Water
is set too high. Heater section of this manual.
Gas Control (Thermostat) ● Contact a qualified service technician to replace the
Defective. gas control (thermostat).
CAUTION: For your safety DO NOT attempt repair of electrical wiring, gas piping, gas control (thermostat), burners, vent
connectors or other safety devices. Refer repairs to qualified service personnel.
CAUTION: Make certain power to water heater is “OFF” before removing protective cover FOR ANY REASON.
CAUTION: Label all wires prior to disconnection when servicing controls. Wiring error can cause improper and dangerous
operation. VERIFY PROPER OPERATION AFTER SERVICING.
Before You Call For Service…
Troubleshooting Tips
Save time and money! Review the charts on the following pages first and you may not need to call for service.
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