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Check the items below before making a service call. You will be charged for attending to any condition or
fault that is not related to manufacture or failure of a part.
NOT ENOUGH HOT WATER (OR NO HOT WATER)
Are you using more hot water than you think?
Are outlets (especially the showers) using more hot water than you
think? Very often it is not realised the amount of hot water used,
particularly when showering. Carefully review the hot water usage.
Have your plumber fit a flow control valve to each shower outlet to
reduce water usage.
Temperature pressure relief valve running
Is the relief valve discharging too much water? Refer to
"Temperature Pressure Relief Valve Running"
Thermostat setting
Ensure the thermostat setting of the primary heating source is
appropriate. You may choose to have your electrician adjust the
thermostats upwards to gain additional hot water capacity.
Warning: Hotter water increases the risk of scald injury.
Water heater size
Do you have the correct size water heater or sufficient storage for your requirements? The sizing guide in
the Rheem sales literature and on the Rheem website
may be needed.
TEMPERATURE PRESSURE RELIEF VALVE RUNNING
Normal Operation
This valve is designed to only relieve excess thermal energy or an
unanticipated build-up of pressure. In a fully flooded closed loop
system an appropriately sized expansion vessel must be installed
to accommodate for the expansion of heat transfer liquid. It must
be sized accordingly to accommodate the pressure of the full
capacity of the system and its thermal expansion. In a drain back
design the system is not filled to 100% of its capacity, therefore an
expansion vessel is not required. The heat transfer liquid will
expand in to the remaining empty capacity of the system.
Continuous dribble
Try gently raising the easing lever on the relief valve for a few
"Temperature Pressure Relief Valve"
seconds (refer to
This may dislodge a small particle of foreign matter and clear the
fault. Release the lever gently.
The relief valve may discharge some fluid on first heat up.
Continued leakage of fluid from the valve and its drain line may indicate a problem with the water heater
Heavy flows of hot fluid or steam
The primary heating source must be shut down and the energy source isolated. Phone Rheem Service
or their nearest Accredited Service Agent to arrange for inspection.
Warning: Never replace the relief valve with one of a higher pressure rating.
IF YOU HAVE CHECKED ALL THE FOREGOING AND STILL BELIEVE YOU NEED ASSISTANCE,
PHONE RHEEM SERVICE OR THEIR NEAREST ACCREDITED SERVICE AGENT
SAVE A SERVICE CALL
on page 10.
10
(www.rheem.com.au)
suggests average sizes that
on page 8).
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