To Clean The Grid; Preparing The Ro 400 For Storage - Electrolux RO 400 User Manual

MAINTENANCE

To clean the grid

The grid (a coarse filter) is designed to intercept large particles
and is located inside the connection for the feed water on the
appliance. If the pattern of indicator lights on the control
panel shows that the intake pressure is too low, the reason may
be that the grid is clogged.
1 Turn off the tap for purified water. Disconnect the appliance
from the electrical supply.
2 Close the valve on the water supply pipe.
3 Undo the feed water hose connector on the back of the appliance.
4 Use suitable pliers to grip and remove the grid (Fig. A).
5 Clean the grid and run water through it before putting it back
inside the connector.
6 Reconnect the feed water hose to the appliance.
7 Open the valve on the cold water supply pipe and check that
there are no leaks.
8 Connect the appliance to the electrical supply again. It will flush
automatically.

Preparing the RO 400 for storage

If the RO 400 is not going to be used for a period longer
than four months, it needs to be filled with a special product
to keep it in good condition.
The correct product ("Preservative and Antifreeze Liquid")
can be ordered from your dealer. Please quote the part
number listed under "Optional accessories and consumables".
This product must be kept out of the reach of children.
1 Make sure the tap is turned off and the appliance has stopped
flushing.
2 Close the valve on the water supply pipe. Disconnect the
electrical plug and the hoses for feed water and reject water (but
not at their appliance ends). Study Fig. B.
3 Undo both filter containers as described under "Replacing the filters",
steps 3–6. Remove the two filter inserts and discard them (should not
be kept for re-use). Empty the water from the containers.
4 Put the empty filter containers back in their normal places and
tighten them. Make sure that each sealing ring is in place in the
groove on the top edge of each container.
5 Mix 2 litres of the "Preservative and Antifreeze Liquid" with 2
litres of water in a bucket.
6 Put the ends of the two hoses (feed and reject water) into the
mixture. Make sure that the end of the feed water hose remains
beneath the surface throughout, see Fig. C.
7 Connect the electrical plug again. The RO 400 will now auto-
matically pump the mixture inside the appliance. After 40 seconds,
disconnect the electrical plug. Repeat this step two more times.
8 Any mixture left can be discarded down the drain.
You have now prepared the RO 400 for storage. It can be
left in this state for up to nine months.
When the RO 400 is to be brought back into use
you must:
•Work through all the steps of the full "Flushing
procedure", to remove the preservative.
•Fit new filter inserts (both
the filters".
18
and ), see "Replacing
A
B
C