A.O. Smith Electric Water Heater 0400

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 in place before inspection

Check the condition of the anode rod

Is the water artificially softened?

Describe any adverse water quality conditions observed

Turn OFF the electrical disconnect switch

Close the cold water inlet valve to heater

Open a nearby hot water faucet to vent the system

If the heater is being drained for an extended shutdown, leave the drain valve open during this period

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 according to the Draining and Flushing procedures

Close the drain valve after draining

Turn OFF electrical disconnect switch

Drain the heater following Draining instructions

Remove the banks and gaskets from the openings