A.O. Smith Electric Water Heater 1250

Check for signs of a depleted anode rod

Does the anode rod show signs of depletion?

Turn OFF electric supply to the water heater

Shut OFF the water supply and open a nearby hot water faucet to depressurize the water tank

Drain the tank following proper procedures

Close the drain valve after draining

Turn OFF the electrical disconnect switch

Close the cold water inlet valve to heater

Open a nearby hot water faucet to vent the system

Is the heater being drained for an extended shutdown?

Leave the drain valve open during extended shutdown

Ensure no one is in front of or around the outlet of the temperature-pressure relief valve discharge line.

Verify that the discharge pipe terminates at an adequate drain.

Manually operate the temperature-pressure relief valve.

Did the valve reset completely and stop releasing water?

If the valve did not reset, did you close the cold water inlet to the water heater?

Follow the draining instructions in the manual if the valve did not reset.

Check all connections for tightness

Repair water leaks and tighten electrical connections as necessary

Turn on the electrical disconnect switch

Turn on the pilot toggle switch

Observe the operation of the electrical components during the first heating cycle

Check temperature control and contactor operation by allowing the heater to come up to temperature and shut off automatically

Ensure adequate drainage is available before inspection

Locate the anode rod on the water heater

Inspect the anode rod for depletion

Is the water artificially softened?

Does the anode rod need replacement?

Notes on the condition of the anode rod