American Water Heater American Water Heaters Residential Gas Water Heater Water Heater User Manual


 
35
TROUBLESHOOTING GUIDELINES
Pleasecheckguidelinesbelow.Foryoursafety,waterheaterserviceshouldbeperformedonlybyaqualiedservicetechnician.
ReadtheGENERALSAFETYINFORMATIONsectionrst.
INTELLI-VENT TROUBLESHOOTING CHART - USER CONTROL
# LED STATUS PROBLEM SOLUTION
1
Inadequate or no earth ground.
1 Ensurethewalloutlet(powersupply)isproperly
grounded.
2 Ensure all ground connections/wires on the water
heater are securely connected.
2
High resistance to earth ground or
reversed polarity in the 120 VAC
power supply.
1 Ensure that the water heater is securely connected to
earth ground.
2 Ensure that the wall outlet/power supply is properly
wired. Also, ensure that internal 120 VAC wiring
connections and the wiring harness have no reversed
wires.120VAC“hot”wiremustconnecttotheon/off
switch.
3
Pressure switch circuit remaining
closed for more than 5 seconds
after heating cycle begins.
Blower may not start in this
condition.
1 Ensure air pressure switch circuit wiring is correct and
the air pressure switch is not jumpered.
2 Replace the air pressure switch.
4
Pressure switch circuit remains
open longer than 5 seconds after
the blower is energized.
Blower may run continuously in
this condition.
1 Ensure the air pressure switch sensing tube is properly
connected at both ends and is not kinked or damaged.
2 Ensurethecorrectsizeofventandintakeairpipe(direct
ventproducts)wasusedpertheinstallationinstructions
that came with the water heater.
3 Ensure maximum number of elbows or maximum
equivalent feet of vent or intake air pipe have not been
exceeded per the installation instructions that came
with the water heater.
4 Ensure there are no obstructions in the vent or intake air pipe.
5
Open igniter circuit.
1 Check wiring to the hot surface igniter assembly -
replace igniter assembly if wiring is damaged or worn.
2 Check resistance of the igniter at igniter assembly
plug - should be between 11 and 18 ohms at room
temperature(77°Fatplugend)-replaceigniterifopen
or shorted.
3 Check igniter assembly plug and the socket on the gas
control valve/thermostat for good connection. Replace
igniter assembly if the plug is worn or damaged.
5 Replace the gas control valve/thermostat if the igniter
assembly socket on the bottom of the control is worn or
damaged.
6
Ignition/amefailure.
The gas control valve/thermostat
has reached the maximum number
ofretries(3)forignitionandis
currently locked out for one hour.
Cycle the power to the water heater
off and on to reset.
1 Ensureamesensorismakinggoodcontactwiththe
burnerameandensureameissteady.Alsoensure
supply and manifold gas pressures are within the
requirements in the installation manual.
2 Gas supply is turned off - pressure is too low. For
low gas pressure, consult with your gas utility.
3 Ensuretheamesensorisclean-usenesteelwool
tocleantheamesensor.
4 Check igniter assembly plug and the socket on the
bottom of the gas control valve/thermostat for good
connection. Replace igniter assembly if the plug is worn
or damaged. Replace the gas control valve/thermostat if
socket is worn or damaged.
5 Replace igniter assembly.