Technical data

SAVE A SERVICE CALL
13
TEMPERATURE PRESSURE RELIEF VALVE RUNNING
Normal Operation
It is normal and desirable that this valve allows a small quantity
of water to escape during the heating cycle. However, if the
discharge is deemed excessive (more than 2% of hot water
used), 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 8). 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 water heater is cold - then stops until water reheats
The water heater must be switched off at the switchboard. 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 20) 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.
HIGHER THAN EXPECTED ELECTRICITY BILLS
Should you at any time, feel your electricity account is higher than expected, we suggest you check the
following points:
Is the relief valve running excessively?
Refer to “Temperature Pressure Relief Valve Running” on
page 13.
Are outlets (especially the showers) using more hot water than
you think?
Refer to “Not Enough Hot Water” on page 12.
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.
Has there been an increase in hot water usage?
An increase in hot water usage will result in an increase in
water heater operation.
Has your water heating tariff rate been increased by your electricity retailer since your previous account?
The electricity tariff to which your water heater is connected will determine the overall operating cost of
the system.
It is important you are aware of this tariff, i.e. continuous or time controlled supply.
IF YOU HAVE CHECKED ALL THE FOREGOING AND STILL BELIEVE YOU NEED ASSISTANCE,
PHONE RHEEM SERVICE OR THEIR NEAREST ACCREDITED SERVICE AGENT.