Ariston VLS Flat 50 Teknik Kılavuz - Sayfa 18

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Insufficient

softener upriver the safety valve to reduce water hardness;

water flow

- dirt and dust

Incorrect appliance working mode settings:

- high water temperature set-point (could be check by the end user, too)

point is not able to satisfy the end user comfort request, adjust the set-point.

Incorrect thermostatic mixing valve setting (if present) due to:

- high water temperature set-point

Boiler water or

in compliance with the end user comfort request, adjust the set-point;

steam from

- faulty component

taps

replace it.

Low sensors sensitivity due to:

- high level of limestone into the tank

limestone, clean it and, if necessary, install a proper softener upriver the safety valve

to reduce water hardness.

Incorrect appliance horizontal installation

Noise during

dismount the product from the wall and make the proper installation.

the heating

High level of limestone into the tank

phase

limestone, clean it and, if necessary, install a proper softener upriver the safety valve to

reduce water hardness.

Dust and dirt (could be check by the end user, too)

because of dust and dirt presence, contact the network technical service.

Bad water

Pipes connection corrosion due to:

quality

- different materials matching

provide dielectric joints between them.

"Shower ready"

Incorrect jumpers setting on the PCB

icon/symbol

from what depicted at paragraph 2.5, set them properly.

often off

4.3 Routine maintenance

All maintenance operations and service visits should be performed by a competent person (who have the

skills required by the applicable norms in force).

The pressure safety device must be enabled regularly (once a month) to remove the limestone deposits

and to check that it is not clogged.

Replace the Mg anodes every two years. To remove them, disassemble the heating elements and unscrew

them from the support bracket.

To ensure the best performance from this appliance, descale the heating element once every two years. If

you prefer not to use special descaling acids for this operation, simply crumble away the lime deposit

without damaging the heating element.

if dirt or dust is present, clean the filter.

if the thermostatic mixing valve set-point is not

if the thermostatic mixing valve is damaged or out of tune,

if different metallic materials are used in the circuit,

if the heating element is widely covered by

if the water pipes are on the right,

if the heating element is widely covered by

if the cold water has a bad quality

if the PCB jumpers have a different position

if the set-