American Water Heater AMERICAN WATERHEATERS Installation And Use Manual page 29

PILOT LIGHT TROUBLESHOOTING CHART
Section A: Pilot light will not light (new installation). Section C: Pilot light will not remain lit.
Check for insufficient combustion air. m
Is the manual gas shut-off valve, / •lTurn the manual gas shut-off valve to I
located in the supply line to the IN NO _lthe on position and follow the lighting I
m water heater, inthe°np°siti°n?/
" minstructi°ns °n the fr°nt °f the water heater" m
YES
/ • IWhile repeatedly depressing the igniter
Have you bled all the air
from the pilot tube and IN NO_lbutton, push in and hold the gas control/
[gas supp y ne? | --Itemperature knob until the pilot is lit and
a maintains a stable flame, (status light
YES will blink) then release the gas control/
temperature knob.
Is S 0nte' r° ucin0a !
Follow the "Testing the Igniter
System sect on n th s manual. I lSet thermostat to desired temperature" J
Section B: Pilot light repeatedly goes out.
Remove the burner door Refer to the "Maintenance of /
assembly. Are the flame-trap and ik Iyour Water Heater" section of this L
==NO . . .
burner free from debris due to
lip manual for informatlon on cleanlng |
excessive lint, dirt, dust or oil? the flame-trap and burner. I II
YES
/
,!, 4,
Does the flame-trap IN Reassemble the heater, press the thermal I
show signs of NON_, switch, and attempt to return the heater to
/
d sco orat on?
serv ce. Does the p ot rema n t?
YES YES NO
m
Shut-off the gas supply to the water heater at the I /
manual gas shut-off valve, use the number on the
I
!
cover of th s manua to contact Customer Serv ce.
ISet to desired temperature. I
Does the diagnostic status light on the
gas control valve/thermostat give
a two fash error code?
YES
Go to section C. I
",I,
Refer to the "Replacing the Pilot
I
Assemby nstructons n the manua. I
!
I Reassemble and restore to service. I
Are the combustion air supply and ventilation openings • ICorrect size of
of sufficient size? See "Combustion Air Supply and m NOmlpIopenings to allow
Ventilation" section in this manual for requirements. |surf cent a r.
Y_S
÷
mNOmlls there a furnace/air handler in the same room as the water heater? I
YES
Does the return air duct for the furnace/
air handler draw its air from a separate IContact a local Heating, I
location than the water heater? See the • IVentilation, Air-Conditioning I
"Location Requirements" section and NNO_ 1& Refrigeration authorized I
the "Combustion Air Supply" section. I service pr°vider t° c°rrect I
lthe combustion air supply/ I
YES | ventilation issue. I
÷
ls there proper drafting at the | ICheck the vent
Idrafthood? See "Checking thelm NO mll_system for restrictions/
Draft'' section in this manual. Y Iobstructions and check
Y[=S |the vent termination
II |height. Refer to the
II |"installation Instructions"
II |section of this manual for
/ specific requirements.
Reference the number on the cover of this I
lmanua for serv ce nformat on. J
NOTE: If you are still experiencing difficulties after
following the steps in sections A, B, and C, use the
number on the cover of this manual to contact Customer
Service.
Figure 30
Thermal Switch Location
29