American Water Heater AMERICAN WATERHEATERS Installation And Use Manual page 28

STATUS LIGHT CODE TROUBLESHOOTING CHART
LED STATUS PROBLEM CORRECTIVE ACTION
0 FLASHES (LED NOT LIT) Pilot light is not tit. Not enough
power (millivolts) to keep it lit.
1 FLASH (EVERY 3 SECONDS)
2 FLASHES
Normal operation.
Insufficient power (mittivolts) to the
gas control valve/thermostat.
4 FLASHES High water temperature has
activated the over heat sensor.
5 FLASHES Sensor failure
7 FLASHES Gas Control Valve/Thermostat
failure.
8 FLASHES
This condition only appears if the
gas control/temperature knob has
been turned off and the thermopite
continued to produce electric
power. This condition can occur
if the thermopite does not cool
down as quickly as expected when
the unit is shut off. This condition
can also occur if the gas control/
temperature knob has been turned
off and the pilot continues to
operate because the pilot valve is
stuck in the open position.
Follow the lighting instructions on the front of the
water heater and record any diagnostic codes.
See Diagnostic Status Light Code section.
No corrective action necessary.
1. Check all wiring connections. If problem
persists proceed to step 2.
2. Replace the thermopite. If you feel
uncomfortable with this procedure, contact a
qualified person.
Replace the gas control valve/thermostat. If you
feel uncomfortable with this procedure, contact a
qualified person.
Replace the gas control valve/thermostat. If you
feel uncomfortable with this procedure, contact a
qualified person.
Replace the gas control valve/thermostat. If you
feel uncomfortable with this procedure, contact a
qualified person.
Make sure that the gas control valve/thermostat
knob is set to OFF. Wait one minute. Remove
the outer door. Look through the sight glass for
a pilot flame. If a pilot flame is observed with the
gas control valve/thermostat knob set to the OFF
position, the pilot valve is stuck open. Turn the main
gas supply OFF. Replace the gas control valve/
thermostat. If you feel uncomfortable with this
procedure, contact a qualified person.
If the pilot flame is not observed when the gas
control valve/thermostat knob is set to the OFF
position, wait 10 minutes for the thermopite to coot,
then attempt to relight the pilot by following the
lighting instructions on the water heater's label. If
this condition returns, replace the gas control valve/
thermostat. If you feel uncomfortable with this
procedure, contact a qualified person.
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