A.O. Smith Water Heater HW-610 Propane

Shut off electric and gas supply to the unit

Remove pressure relief valve from outlet header assembly and install drain hose assembly

Install standpipe in tee of inlet line

Ensure the circulator pump is turned off

Verify that the oil tube is available and in good condition

Identify and locate the oil cups

Add 2 or 3 teaspoons of No. 20 non-detergent motor oil to the bearing oil cups

Add 10 or 12 drops of No. 20 non-detergent motor oil to the motor oil cups

Is there any oil leakage around the oil cups?

Pilot Burner - Electronic Ignition

Open fused disconnect switch or shut off electrical power to the boiler.

Turn the gas valve control knob counterclockwise to the 'PILOT' position.

Close fused disconnect switch to restore electrical power to the boiler.

Did the pilot ignite with the combination gas valve knob set at 'PILOT' and the system calling for heat?

Adjust pilot flame to cover 3/8" to 1/2" (10-12mm) of the sensing probe tip.

Did the main burner light after pilot ignition?

If the main burner fails to light, check the following:

Is electrical power and gas present at the valve?

Inspect boiler mounted gas controls for proper operation

Inspect electrical controls for proper operation

Is a more frequent inspection necessary based on water conditions?

Notes or observations from the inspection

Inspect the operation of all safety devices including low water cutoffs

Is more frequent inspection required based on water conditions?

Maintenance of Low Water Cutoff Device

Flush the low water cutoff device of the float type