It is recommended that the following
points be reviewed before making a
service call:
No Hot Water:
Ensure the power supply circuit breaker
has not “tripped”. If the water heater
is on a timed tariff such as off-peak,
ensure this is operating correctly.
High Energy Bills or Insufcient Hot
Water:
• Often the hot water usage of
showers, washing machines
and dishwashers can be under
estimated. Review these appliances
to determine if the daily usage is
greater than the capability of the
water heater.
• If necessary check the shower ow
rates with a bucket, measuring
the amount of water used over a
period of time. If it is not possible
to adjust water usage patterns, an
inexpensive ow control valve can
easily be tted to the shower outlet.
• Is the water heater the correct size
for the requirements? Sizing details
are available from your Dux supplier.
• Is there a leaking hot water pipe or
dripping hot water tap? A small leak
can waste a large quantity of hot
water. Replace faulty tap washers
and arrange for your plumber to
rectify any leaking pipe work.
• Is the Pressure & Temperature Relief
Valve discharging too much water?
See below.
Continuous Trickle of Water from
Pressure & Temperature Relief (PTR)
Valve:
This is most likely due to a build up of
foreign matter. In this case, try gently
raising the easing lever on the PTR Valve
for a few seconds, then release gently.
This may dislodge a small particle of
foreign matter and rectify the fault.
Water Discharge from PTR Valve:
It is not unusual for a small quantity of
water to discharge during the heating of
water in the storage tank. The amount
of discharge will depend on hot water
usage and the size of the storage tank.
As a guide, it will discharge about 2% of
the volume of the water heated.
Continuous leakage of water from the
PTR Valve may indicate a problem with
the water heater. Turn off the water
heater and contact Dux After Sales and
Service.
If after checking the above points,
the problem has not been identied,
please contact Dux After Sales and
Service.
Considering a Service Call?
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