Troubleshooting Tips; Before You Call For Service - American Water Heater PowerVent Use & Care Manual

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.
This water heater incorporates a combustion shut off device that shuts the operation of the water heater
down if undesirable combustion conditions occur, such as the presence of flammable vapors or blockage of
the combustion air inlet openings. Please contact a Qualified Service Technician if this occurs.
Problem
Condensation
Yellow flame
or soot
Unable to light
the main burner
Main burner does not
stay lit
CAUTION: For your safety DO NOT attempt repair of gas piping, gas control (thermostat), burners, vent connectors or other safety
devices. Refer repairs to qualified service personnel.
Possible Causes
This usually happens when
a new water heater is
filled for the first time.
Moisture from the products
of combustion condensing
on the tank surface.
An undersized water
heater will cause
condensation.
Scale on top of the burner.
Flue or Combustion air inlet
openings are restricted.
Not enough combustion or
ventilation air supplied to
the water heater location.
Air in gas line.
Blocked Exhaust
Pressure Switch
Wire Connection not fully
secured.
Combustion Shut-off Device
tripped,
Gas Control Problem
Combustion Shutoff Device
Tripped.
What To Do
This is normal. After the water in the tank warms

up, the condensation will disappear. If, however, the
condition persists, examine the piping and fittings
for possible leaks.
This is normal and will disappear in time. Excessive

condensation can cause main burner outage.
Use a water heater size that meets the requirements

of your needs.
Contact a qualified service technician to remove scale.

Remove obstruction or debris from flue or

combustion air inlet openings on water heater jacket.
Proper operation of the water heater requires air for

combustion and ventilation. See the Combustion and
Ventilation Air information in the "Installing The
Water Heater" section of this manual.
Contact a qualified service technician to purge the air

from the gas line.
Contact a qualified service technician to evaluate vent

pipe for blockage.
Make sure the pressure switch hose is not "kinked".

Contact a qualified service technician to confirm wire

connections.
Combustion shut-off device should be inspected by a

qualified service technician.
Contact a qualified service technician.

The combustion shutoff device should be inspected

by a qualified service technician.
29