Install Instructions
32
STATUS LIGHT TROUBLESHOOTING FLOWCHART
LED FLASH 
SEQUENCE
CONTROL STATUS CORRECTIVE ACTION
Six-Two Flash, three second pause Soft Lockout* - Recycle Limit - Flame Lost - 
END Switch Fails
Turn the power switch on the gas control valve to the “OFF” position and unplug the power cord from the 
power outlet.
1.  Check all wiring connections to insure all harness and wire connections are seated firmly and provide 
proper electrical contact. If no connection problems are found replace the damper. Firmly seat any 
loose connections found. If any connections are found to be damaged consult the replacement parts 
list on pages 34-35 for the appropriate replacement. After any connection problems are fixed restart 
the water heater by following the lighting instructions on page 19. If the problem persists replace the 
damper.
Six-Three Flash, three second pause Soft Lockout* - Recycle Limit - Flame Lost Turn the power switch on the gas control valve to the “OFF” position and unplug the power cord from the 
power outlet.
1.  Check the incoming gas line pressure to ensure adequate supply to the water heater. If incoming 
gas supply pressure is adequate proceed to step 2.
2.  Check all wiring connections and insure all harness and wires connections are seated firmly and 
provide proper electrical contact. If no connection problems are found proceed to step 3. Firmly 
seat any loose connections found. If any connections are found to be damaged consult the 
replacement parts list for the appropriate replacement. After any connection problems are fixed 
restart the water heater by following the lighting instructions on page 19. If the problem persists 
proceed to step 3.
3.  Check condition of the base ring filter and flame arrestor. If they are clogged follow the 
instructions for cleaning on pages 26-27. If parts are not clogged proceed to step 4. After 
cleaning follow instructions for lighting on page 19. If problem persists proceed to step 4.
4.  Follow the instructions on page 25 to remove the burner assembly. Once the burner assembly has 
been removed inspect the manifold tube and burner, see figure 29 , for any obstructions. If any 
clogs or obstructions are present clear them. Inspect the electrode/flame sense rod, see figure 
43 , for corrosion buildup, degradation, or damage. If there is evidence of any damage to the 
electrode/flame sense rod replace the igniter/pilot assembly. Follow the directions on page 27 to 
re-install the burner assembly into the combustion chamber. Follow the instructions for lighting on 
page 19. If the problem persists contact a qualified service representative.
Six-Four Flash, three second pause Soft Lockout* - Flame out of Sequence Sensed Turn the power switch on the gas control valve to the “OFF” position and unplug the power cord from the 
power outlet. Wait 10 minutes then follow the lighting instructions on page 19. If the problem persists 
replace the gas control valve.
Seven Flash, three second pause Flammable Vapor Sensor (FVS) Lockout 1.  Do not touch any electrical switch, do not use any phone in the building and do not try to light any 
appliance.
2.  Smell around the water heater to ensure there are no gas leaks at the gas control valve or in the 
supply gas line or for any other type of flammable vapors in the area.
3.  Carefully inspect the area surrounding the water heater for any substances such as gasoline, 
paint, paint thinners, varnish, or cleaners that could emit flammable vapors. Remove anything that 
can potentially emit flammable vapors from the area and store it properly in a different location.
4.  Contact a qualified service representative for inspection and/or replacement of the FV sensor.
Eight-One Flash, three second pause Flammable Vapor Sensor (FVS) Fault Detected Turn the power switch on the gas control valve to the “OFF” position, wait 10-20 seconds then turn the 
power switch on the gas control valve to the “ON” position. If the problem persists replace the gas valve.
Eight-Two Flash, three second pause Temperature Sensor Fault Detected Turn the power switch on the gas control valve to the “OFF” position, wait 10-20 seconds then turn the 
power switch on the gas control valve to the “ON” position. If the problem persists replace the gas valve.
Eight-Three Flash, three second pause Electronic Fault Detected Turn the power switch on the gas control valve to the “OFF” position, wait 10-20 seconds then turn the 
power switch on the gas control valve to the “ON” position. If the problem persists replace the gas valve.
Eight-Four Flash, three second pause Gas Control Valve/Thermostat Fault Detected Turn the power switch on the gas control valve to the “OFF” position, wait 10-20 seconds then turn the 
power switch on the gas control valve to the “ON” position. If the problem persists replace the gas valve.
* Soft Lockout - 20 minute wait before returning to normal mode.










