A.O. Smith Gas Water Heater BTRC120

Shut off gas supply to the heater

Remove outer cover plate from lower side of heater jacket

Remove hex head screws securing tank cleanout plate

Remove lime, scale, or sediment

Burner Characteristics Verification

Is there any accumulation of lint or foreign material restricting air openings?

Check that burner venturi and ports are free of foreign matter

Clean burners with bristle brush and/or vacuum cleaner

Reinstall burners in unit ensuring correct installation in support brackets

Check for good flow of combustion and ventilating air to the unit

CAUTION: Property Damage Hazard

Ensure water heater is turned off and cooled down

Gather necessary tools for inspection

Locate the anode rod on the water heater

Inspect the anode rod for corrosion or pitting

Is the anode rod corroded or pitted?

Is the water artificially softened?

Unfasten two screws to burner cover and remove it

Locate the burner with pilot and remove screw holding burner to manifold

Unfasten pilot tubing from valve and slide out burner and pilot

Clean the orifice of the pilot burner

CAUTION: Property Damage Hazard

Inspection and Replacement Guidelines

Ensure inspection is conducted by a qualified technician

Check the condition of the anode rod

Is the anode rod corroded or pitted?

Is the water artificially softened?

Does the anode rod need replacement?

Replace the anode rod if necessary