American Water Heater Residential Gas Water Heaters Benutzerhandbuch

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Call the technical support phone number listed on the back cover for further technical assistance or to locate a qualified service technician 

in your area.

•  The control system has failed to ignite the Main Burner.
•  Water heater is not properly grounded, loose or open ground wire 

to the Main Burner.

•  Dirty/corroded flame sensor, clean flame sensor with fine steel 

wool (replace if damaged).

•  Loose or open wiring to the flame sensor.
•  Loose or open wiring to the 24 V Gas Control Valve.
•  Supply gas turned off, low gas volume.
•  Intake air and/or vent piping is restricted or improperly installed.
•  Low or no manifold gas pressure to the Main Burner.

 

CHANGE

 

BACK 

ADVANCED

Ignition Failure

Fault occurred 2 mins ago

The water heater has failed to

ignite the burner.

Call a service professional:

Your Company Name Here

(press [DOWN] for more....)

•  The control system has detected the Blocked Exhaust Switch 

contacts are open.

•  The condensate drain is blocked filling the exhaust elbow with 

water - clear the condensate drain.

•  Loose or open wiring to the Blocked Exhaust Switch.
•  Restricted/blocked vent piping - condensate trapped in low point.
•  Excessive equivalent pipe length, exceeded the maximum number 

of 90° elbows or wrong pipe size used in the vent piping system.

•  Excessive wind outdoors pressurizing the vent system piping.
•  Excessive negative air pressure in the installed space.

 

CHANGE

 

BACK 

ADVANCED

Blocked Exhaust

Fault occurred 2 mins ago

The exhaust is blocked or

restricted. Ensure

condensate hose is draining.

Call a service professional:

Your Company Name Here

(press [DOWN] for more....)