SAVE A SERVICE CALL
15
CLOUDS OF WHITE ‘VAPOUR’ FROM THE FLUE TERMINAL
During the heating cycle, it is not unusual to see water vapour clouds
steaming from the flue terminal, particularly on cold days. This is normal
operation of the water heater.
PRESSURE RELIEF VALVE DISCHARGING
A pressure relief valve is incorporated into the continuous flow side of the
water heater controls. This valve protects the water heater, by allowing
water to escape, in the event of excessive pressure build up in the
waterways.
Normal operation
A small volume of water may discharge from the bottom of the water
heater when a hot tap is suddenly closed.
Continuous dribble
A continuous dribble may indicate the water supply pressure is above
the design pressure for the water heater. If so, a pressure limiting
valve must be installed on the cold water supply pipe to the water
heater (refer to
“Mains Water Supply”
on page 19).
ERROR CODE
The water heater provides a diagnostic error code in the event of an interruption to its operation. The error
code is displayed on the OK MONITOR on the front of the water heater as a numerical value. If an error code
appears:
Close the hot tap and switch off the electrical supply to the water
heater.
Check the gas isolation valve at the gas inlet to the water heater is
fully open.
Wait 5 minutes, then switch on the electrical supply to the water heater
and open a hot tap.
If the error code persists, take note of the numerical code and turn off the hot tap. Phone Rheem Service or
their nearest Accredited Service Agent to arrange for inspection.
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 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 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 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 isolating switch. Phone
your nearest Rheem Service Department or Accredited Service Agent
to arrange for an inspection.
