Figure 8
Temperature and Pressure Relief Valve
Manual Relief
Lever
Discharge line to drain

MAINTENANCE OF YOUR WATER HEATER

If you lack the necessary skills required to properly service this water heater or you have difficulty following the instructions, you should not proceed but have a qualified person perform the maintenance of this water heater.

Draining and Flushing

It is recommended that the tank be drained and flushed every 6 months to remove sediment which may buildup during operation. To drain the tank perform the following steps:

1.Turn off the power to water heater.

2.Close the cold water inlet valve and open a nearby hot water faucet.

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

Important: Drain hose should be rated for at least 200°F. If the drain hose does not have this rating, open the cold water inlet valve and open a nearby hot water faucet until water is no longer hot.

4.Open the water heater drain valve and allow all the water to drain from the tank. Flush the tank with water as needed to remove sediment.

5.Close the drain valve and refill the tank until water flows from the open hot water faucet. Allow water to run for a couple of minutes to make sure all air is out of tank.

6.Restart the water heater as directed under “Operating Your Water Heater.” If the water heater is going to be shut down for an extended period, the drain valve should be left open.

Replacing the Anode Rod

1.Turn off the power to the water heater.

2.Shut off the water supply and open a nearby hot water faucet to depressurize the water tank.

3.Drain approximately 5 gallons of water from the tank. (Refer to “Draining and Flushing” for proper procedures.) Close drain valve.

4.Remove old anode rod.

5.Use Teflon® tape or approved pipe sealant on threads and install new anode rod.

6.Turn on water supply and open nearby hot water faucet to purge air from water system.

7.Restart the water heater as directed under “Operating Your Water Heater.” See the “Repair Parts Illustration" for anode rod location on page 15.

Temperature and Pressure Relief Valve

WARNING

Explosion Hazard

If the temperature and pressure relief valve is dripping or leaking, have a qualified service technician replace it.

Do not plug valve.

Do not remove valve.

Failure to follow these instructions can result in death or explosion.

Manually operate the temperature and pressure relief valve at least once a year to make sure it is working properly. To prevent water

damage, the valve must be properly connected to a discharge line which terminates at an adequate drain.

Standing clear of the outlet (discharged water may be hot), slowly lift and release the lever

handle on the

temperature and pressure relief valve to allow the valve to operate freely and return to its closed position. If the valve fails to completely reset and continues to release water, immediately shut off the electrical power and the cold water inlet valve and call a qualified service technician.

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Whirlpool 188410, EE2H40RD045V, 188413 Maintenance of Your Water Heater, Draining and Flushing, Replacing the Anode Rod