Fleck NILO 15 Manual De Instrucciones página 18

EN
MAINTENANCE REGULATIONS (for qualified 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.
Emptying the appliance
To drain the appliance, proceed as follows:
- close the tap, if installed (D Fig. 2), otherwise the central tap domestic power supply;
- turn on the hot water tap (wash basin or bathtub);
- open the drain valve B (Fig. 2).
Replacing parts
The electrical parts may be accessed by removing the cover.
• For models featuring an user interface of the type represented in figure 3:
To work on the sensor support rod (Ref. K), disconnect the wire (Ref. F) form the P.C.B. and remove it from its
slot, taking care not to bend it too much.
To work on the control panel (Ref. W), disconnect the wire (Ref. Y) and loosen the screws.
To work on the power board (Ref. Z), disconnect the cables and wires (Ref. C, Y, F, H e P) and loosen the screws.
To work on the heating element, loosen the screw (V fig.5) and remove it from its slot.
To work on the anode the appliance must first be emptied. Loosen the 5 bolts (C fig.5) and remove the flange
(F fig.5). The anode is attached to the flange (N fig.5). We recommended the flange gasket (Z fig. 5) is replaced
every time it's removed.
• For models featuring an user interface of the type represented in figure 4:
To work on the sensor support rod (Ref. K), disconnect the wire (Ref. F) form the P.C.B. and remove it from its
slot, taking care not to bend it too much.
To work on the control panel (Ref. W), disconnect the wire (Ref. Y) and loosen the screws.
To work on the power board (Ref. Z), disconnect the cables and wires (Ref. C, Y, F, H e P) and loosen the screws.
To work on the anode the appliance must first be emptied. Loosen the 5 bolts (C fig.6) and remove the flange (F,
fig.6). The anode is attached to the flange.
During reassembly, make sure that gasket, flange and heating element are put in their original positions (fig. 6
and 7).
We recommended the flange gasket (Z fig. 7) is replaced every time it's removed.
During reassembly, make sure that all components are put back in their original positions.
Only use authentic spare parts from service centers authorized by the manufacturer.
Periodical maintenance
The magnesium anode (N fig. 5,7) must be replaced every two years, otherwise the decay of the warranty. In the
presence of aggressive or waters rich in chloride it is recommended to check the status of the anode annually.
To remove this, disassemble the heating element and unscrew from the support bracket.
• For models featuring a user interface as represented in figures 4.
The heating element (R fig. 7) should be descaled every two years (the frequency must be increased, if water is
very hard) to ensure it works properly. If you do not wish to use a liquid descaler (in this case please read the safety
data sheets of descaling), you can simply break off the deposit, taking care not to damage the heating element's
cladding.
Reset/Diagnostics (Fig. 3 and 4)
When one of the malfunctions described above occurs, the appliance will enter its "fault status" and all LED's on
the control panel, except led, will flash simultaneously.
Reset: to reset the appliance, switch the product off and on again using the button (Ref. A). If the cause of the
malfunction disappears immediately following the reset process, the appliance will resume normal operation. If
this is not the case, all the LEDs will continue to flash; contact the Technical Assistance Centre.
Diagnostics: to activate the diagnostics function, press and hold the button (Ref. A) for 5 seconds. The type of
malfunction is indicated by the 5 LEDs (Ref. 1>5), in accordance with the following diagram: LED ref. 1 – Internal
P.C.B. malfunction;
LED ref. 2 – Anode malfunction (in models fitted with active anode). In this case, the product will continue to work,
but the tank will not be protected again corrosion and the appliance durability can be compromised;
LED ref. 3 – NTC 1/NTC 2 temperature sensors broken (open or short-circuited);
LED ref. 5 – Water overheating detected by an individual sensor;
LEDs ref. 4 and 5 – General overheating (P.C.B. malfunction);
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