Bedienungsanleitung Ariston Velis Evo Wi-Fi (Seite 14 von 24) (Englisch)

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MAINTENANCE REGULATIONS (for qualiﬁ ed personnel)

Before calling your Technical Servicing Centre, check that the fault is not due to lack of water or power failure.

Caution:

disconnect the appliance from the mains before conducting any maintenance work.

Replacing parts

The electrical parts may be accessed by removing the cover (Fig. 7, 8).

Intervene on the power board (Ref. Z) by disconnecting the cables (Ref. C, Y and P) and remove the screws.

Intervene on the control panel by ﬁ rst removing the power board (Ref. Z). The display board is attached to the

product through two ﬁ xing side ﬂ aps (A Fig. 4a) accessible from inside the lower cover.

Release the control panel ﬁ xing ﬂ aps using a ﬂ at screwdriver to pry upon the same (A Fig. 4b) and release

them from the pins, simultaneously push it outwards to free it from the seat. Repeat for both ﬁ xing ﬂ aps. Pay

special attention not to damage the plastic ﬂ aps as breaking them will not allow for correct assembly of the

panel in its seat, resulting in possible aesthetic defects. After removing the control panel, you can disconnect

the connectors of the rod carrying sensors and power board. Intervene on the rod carrying sensors (Ref. K) by

disconnecting the wires (Ref. F) from the control panel and remove it from its seat, taking care not to exces-

sively bend them.

During reassembly, make sure that all components are put back in their original positions.

To work on the heating elements and anodes, ﬁ rst drain the appliance (refer to the related paragraph).

Re move the bolts (C Fig. 5) and remove the ﬂ anges (F Fig. 5). The ﬂ anges are coupled to the heating elements

and anodes. During reassembly, make sure to restore the rod carrying sensors and the heating elements to

the original positions (Fig. 5, 7, 8). Make sure that the ﬂ ange plate with the coloured writing H.E.1 or H.E.2, is

mounted in its position marked by the same writing.

We recommend replacing the ﬂ ange gasket (Z Fig. 6) every time it is disassembled.

Only for models equipped with user interface shown in ﬁ gure 8. Se si deve sostituire l’anodo a corrente im

pressa (Rif. Q), unscrew the nut, disconnect the cable and unscrew the anode from the ﬂ ange.

When you are putting it back in, replace the gasket, tighten the anode to a maximum torque of 2.5 Nm, connect

the cable and tighten the relative nut to a maximum torque of 0.6 Nm.

CAUTION! The reversal of the heating elements involves malfunction of the appliance.

Work on one heating element at a time and remove the second only after replacing the ﬁ rst.

Use only original spare parts.

Periodical maintenance

The heating element (R ﬁ g. 6) should be descaled every two years to ensure it works properly (R Fig. 6) ap-

proximately every two years (the frequency must be increased, if water is very hard).

If you prefer not to use special liquids for this operation, simply crumble away the lime deposit without dam-

aging the heating element.

The magnesium anodes (N Fig. 6) must be replaced every two years (this does not apply to appliances with

stainless steel boilers); however, the anode should be checked every year if the water is corrosive or chloride

rich. To replace them, remove the heating elements and unscrew them from the brackets.

The bypass pipe (X Fig. 7, 8) is inspected in the event of fault due to its obstruction. To inspect it remove the

two rings (W Fig. 7, 8).

After routine or extraordinary maintenance, we recommend ﬁ lling its tank with water and draining it com-

pletely so as to remove any residual impurities. Use only original spare parts supplied by the manufactur-

er’s authorised service centres.

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