Installation Guide
35
PILOT LIGHT TROUBLESHOOTING CHART
Have you bled all the air 
from the pilot tube and 
gas supply line?
NO
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). It may take up to 90 seconds of 
pilot operation before status light blinks. 
Once status light blinks, release the gas 
control/temperature knob.
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?
NO
YES
Turn the manual gas shut-off valve to 
the on position and follow the lighting 
instructions on the front of the water heater.
Is the igniter producing a 
spark?
YES
NO
Follow the “Testing the Igniter 
System” section in this manual.
YES
Set thermostat to desired temperature.
Section B: Pilot light repeatedly goes out.
Check the air intake for blockage.
Is the air intake clear of 
obstructions ?
Clear the obstruction.
NO
YES
Does the diagnostic status light on the 
gas control valve/thermostat give 
a two flash error code?
Attempt to return the heater to service. 
Does the pilot remain lit?
YES
Set to desired temperature.
NO
YES
Refer to the “Replacing the Pilot/Ther- 
mopile Assembly” instructions in the 
manual.
Reassemble and restore to service. 
Contact Residential 
Technical Assistance. 
NO
NOTE: If you are still experiencing difficulties after following
the steps in sections A and B, please contact Residential
Technical Assistance.










