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23
TEMPERATURE 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 (refer to
“Temperature
Pressure Relief Valve”
on page 13).
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.
Warning: Never replace the relief valve with one of a higher pressure
rating.
• Heavy flows of hot water until the water heater is cold - then stops
until water reheats
The gas control must be turned off using the knob on top of the gas control
thermostat (refer to
“Close Down Procedure” on page 51). Phone your
nearest Rheem Service Department 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
(refer to page 40) it may discharge a small quantity of water instead of the
temperature pressure relief valve on the water heater. The benefit is that
energy is conserved as the discharged water is cooler.
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