A.O. Smith Electric Water Heater 0600 Horizontal

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

Record any signs of leakage or corrosion around the water heater

Inspect the condition of the anode rod

Is the anode rod in good condition?

Replace the anode rod if necessary

Is the water artificially softened?

Describe any adverse water quality conditions

DANGER! Burn hazard. Keep clear of drain valve discharge outlet.

Turn OFF the electrical supply to the water heater at the breaker or disconnect switch.

Ensure the cold water inlet valve is open.

Open a nearby hot water faucet and let the water run until the water is no longer hot, then close the hot water faucet.

Connect a hose to the water heater drain valve and terminate it to an adequate drain.

Ensure that the drain hose is secured before and during the entire flushing procedure.

Open the water heater drain valve to flush the storage tank.

Flush the water heater storage tank to remove sediment and allow the water to flow until it runs clean.

Describe any drainage provisions in place

Check the following conditions that may affect anode rod depletion

Is the water artificially softened?

Inspect the condition of the anode rod

Does the anode rod need replacement?

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 after manual operation?

Is the valve continuing to release water after manual operation?

If the valve continues to release water, close the cold water inlet to the water heater.