Technical data

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19
WATER NOT HOT ENOUGH
You may find that due to heavy hot water usage the water temperature may be
lower than normally expected.
WATER TEMPERATURE TOO HIGH
A RheemPlus water heater is fitted with a temperature limiting valve set to
deliver water not exceeding 50°C. If the water is being delivered at a
temperature exceeding 50°C, phone Rheem Service or their nearest Accredited
Service Agent to arrange for an inspection. Care must be taken by all
householders when using hot water until the valve is serviced or replaced.
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 12). 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 39). Phone Rheem
Service or their nearest 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 30) 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.