PILOT LIGHT TROUBLESHOOTING CHART
Section A: Pilot light will not light (new installation).
Is the manual gas shut-off valve,
located in the supply line to the
water heater, in the on position?
Have you bled all the air
from the pilot tube and
gas supply line?
Is the igniter producing a
Follow the Testing the Igniter System
section in this manual.
Section B: Pilot light repeatedly goes out.
Remove the burner door
assembly. Are the flame-trap and
burner free from debris due to
excessive lint, dirt, dust or oil?
Does the flame-trap
Reassemble the heater, press the thermal
show signs of
switch, and attempt to return the heater to
service. Does the pilot remain lit?
Shut-off the gas supply to the water heater at the
manual gas shut-off valve, and contact Customer
Service using the number on the cover of this manual.
Go to section C.
Turn the manual gas shut-off valve to
the on position and follow the lighting
instructions on the front of the water heater.
While repeatedly depressing the igniter
button, push in and hold the gas control/
temperature knob until the pilot is lit and
maintains a stable flame, (status light
will blink) then release the gas control/
Set thermostat to desired temperature.
Refer to the Use &
Care Guide section
of this manual for
cleaning the flame-
trap and burner.
Set to desired temperature.
Does the diagnostic status light on the
gas control valve/thermostat give
a two flash error code?
Refer to the Replacing the Pilot
Assembly instructions in the manual.
Reassemble and restore to service.
Section C: Pilot light will not remain lit.
Check for insufficient combustion air.
Are the combustion air supply and ventilation openings
of sufficient size? See Combustion Air Supply and
Ventilation section in this manual for requirements.
Is there a furnace/air handler in the same room as the water heater?
Does the return air duct for the furnace/
air handler draw its air from a separate
location than the water heater? See the
Location Requirements section and the
Combustion Air Supply section.
Is there proper drafting at the
drafthood? See Checking the
Draft section in this manual.
Contact Customer Service at the number
located on the front of this manual.
NOTE: If you are still experiencing difﬁ culties
after following the steps in sections A, B, and C,
please use the number located on the front of
this manual to contact Customer Service.
Check the vent
system for restrictions/
obstructions and check
the vent termination
height. Refer to the
section of this manual for
Thermal Switch Location
Correct size of
openings to allow
Contact a local Heating,
& Refrigeration authorized
service provider to correct
the combustion air supply/