Service Information
Six Monthly Service (By Owner)
Operate the Pressure & Temperature
Relief Valve for approximately 10
seconds by operating the easing lever
on the valve to ensure water is relieved
to waste through the relief drain pipe.
Check to ensure the valve closes
correctly.
Five Year Service (By Authorised
Personnel Only)
The ve yearly service should be carried
out by a licensed tradesperson. It is
recommended that this service be
carried out by your local Dux agent.
The service should include the following:
• Replace the Pressure & Temperature
Relief Valve.
• Replace the anode. (in areas of
harsh or adverse water conditions
it is recommended that you carry
out a more frequent check of your
anode’s condition, refer Operating
Instructions “Water Quality”)
• Flush the water heater by doing the
following:
i. Turn off the power.
ii. Turn off the cold water supply to
the water heater at the isolating
valve.
iii. Gently operate the easing lever
on the Pressure & Temperature
Relief Valve to release the
pressure in the water heater.
iv. Disconnect the cold water inlet
union to the heater and attach a
drain hose.
v. Gently operate the Pressure &
Temperature Relief Valve to let
air into the heater and allow
water to escape through the
hose.
vi. To ush the heater, carry out
steps (i) to (iv) above. Disconnect
the hot water inlet union and
attach a water supply hose to
the heater. Turn on the water
supply.
vii. Flush the heater until clear
water appears. Reconnect
all ttings, ll the heater and
restore the electricity supply.
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