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SAVE A SERVICE CALL
10
BURNER WILL NOT LIGHT
• Is there gas to the water heater?
Check the gas isolation valve on the gas supply line is open.
• Is there a normal gas supply to the rest of the premises?
Try lighting another gas appliance. If there is no gas call your gas provider.
• Is the ignition system ‘locked out’?
Try resetting the water heater. Refer to “Water Heater Not Operating
” on page 9.
• Is the High Limit tripped:
The manual reset over temperature switch will shut down the water heater in the event of a fault with the
temperature control or water flow. When the system water temperature has cooled sufficiently, the red button
can be pressed, this will restart the water heater. Should frequent resetting be necessary, call your nearest
Rheem Service Department or Accredited Service Agent.
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 “Pressure Relief Valve
” on
page 11). 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 pressure rating greater than 850 kPa.
EXPANSION CONTROL VALVE RUNNING
If an expansion control valve is fitted in the cold water line to the water heater (refer to page 19) it may discharge a
small quantity of water instead of the pressure relief valve on the water heater. The benefit is that energy is
conserved as the discharged water is cooler.
HIGH GAS BILLS
Should you at any time feel your gas account is too high, we suggest you check the following points:
Is the relief valve running excessively? (Refer to “Pressure Relief Valve Running”
on page 10).
Are outlets (especially the showers) using more hot water than you think? (Refer to
“Not Enough Hot Water”
on page 9).
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 gas. Replace faulty tap washers, and
have your plumber rectify any leaking pipe work.
Consider recent changes to your hot water usage pattern and check if there has
been any increase in tariffs since your previous account.
Is there excessive heat loss from the building? Check that there are no large
uncovered windows, ceiling insulation is installed and there are no excessive
draughts.
IF YOU HAVE CHECKED ALL THE FOREGOING AND STILL BELIEVE YOU NEED ASSISTANCE, PHONE
YOUR NEAREST RHEEM SERVICE DEPARTMENT OR ACCREDITED SERVICE AGENT