A.O. Smith Gas Water Heater BTR250

CAUTION: Property Damage Hazard

Inspection and Replacement Guidelines

Inspect the anode rod for corrosion or pitting

Is the anode rod corroded or pitted?

Is the water artificially softened?

Determine the condition of the anode rod

Does the anode rod need replacement?

CAUTION: Property Damage Hazard

Ensure water heater is turned off and cooled down

Gather necessary tools for inspection

Inspect the anode rod for corrosion or pitting

Is the anode rod corroded or pitted?

Is the water artificially softened?

Measure the depth of lime buildup in the heater

Record the depth of lime buildup in inches

Is the lime buildup 1/2 inch or less?

Is the lime buildup 2 inches or more?

Deliming Schedule Recommendation

Recommend deliming schedule based on lime buildup

Shut off gas supply to the heater

Remove outer cover plate from lower side of heater jacket

Remove six hex head screws securing tank cleanout plate

Remove lime, scale, or sediment carefully to avoid damaging the glass lining

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.