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    Rheem Heavy Duty Electric Water Heaters



    Top TEMPERATURE AND PRESSURE RELIEF VALVE RUNNING

    • Normal Operation
      It is normal and desirable this valve allows a small quantity of water to escape during the heating cycle. However, if it discharges more than a bucket full of water in 24 hours, there may be another problem.

    • Continuous dribble
      Try gently raising the easing lever on the relief valve for a few seconds. This may dislodge a small particle of foreign matter and clear the fault. Release the lever gently.

    • Steady flows for long period (often at night)
      This may indicate the mains water pressure sometimes rises above the designed pressure of the water heater. Ask your installing plumber to fit a pressure limiting valve. NEVER replace the relief valve with one of a higher pressure rating.

    • Heavy flows of hot water until water heater is cold - then stops until water reheats
      The water heater must be switched off at the switchboard. Phone your nearest Rheem Australia office or accredited service agent to arrange for inspection.

    EXPANSION CONTROL VALVE RUNNING

      If an expansion control valve is fitted in the cold water line to the water heater it may discharge a small quantity of water instead of the Temperature and Pressure Relief valve on the water heater. The benefit is that energy is conserved as discharged water is cooler.

    Top NOT ENOUGH HOT WATER (OR NO HOT WATER)

    • Is the electricity switched on? Check the switch marked "water heater" at the switchboard and the isolating switch, if one is installed, near the water heater.

    • Check the fuse marked "water heater".

      Note: Where the water heater is connected to an "OFF-PEAK" or controlled electrical tariff, the supply may not be available at certain times of the day.

    • Is the relief valve discharging too much water? See Temperature and Pressure Relief Valve Running.

    • Do you have the correct size water heater for your requirements? The sizing guide in the sales literature suggests average sizes that may be needed.

    • Are outlets (especially the showers) using more hot water than you think? Carefully review the family's hot water usage. Inexpensive flow control valves can be easily fitted to the shower outlets to reduce water usage.

    • Ensure thermostat setting is appropriate.

    • You may choose to adjust the thermostat upwards to gain additional hot water capacity.

    Top HIGH ELECTRICITY BILLS

    • Is the relief valve running excessively? See Temperature and Pressure Relief Valve Running

    • Is one outlet (especially the shower) using more hot water than you think? See Not Enough Hot Water

    • Is there a leaking hot water pipe, dripping hot water tap, etc? Even a small leak will waste a surprising quantity of hot water and electricity.

    • Replace faulty tap washers, and have your plumber rectify any leaking pipe work.
    For more information on your Rheem water heater please refer to the Owner's Guide and Installation Instructions which can be found in the Owners Manuals section of this web site.

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