Ariston Fridge/Freezer Combined Specifiche Scaricare il pdf (Pagina 29)

Merloni Elettrodomestici

FULL NO FROST COMBINED UNIT (2003)

Technical Manual

GB 04-10-28/01 29-43

Language Issue/Edition Page

12. Analysis of keys (models with display only)

The keys allow the user to manage the appliance: they are soldered onto the Display

board on the freezer door.

POSSIBLE CAUSE OF MALFUNCTION:

Wiring between the two boards

Microcontroller management

Control circuit on the board

Keys

TESTING:

General on the appliance and component:

ON/OFF key: with the appliance ON, press and hold down the key for about two to

three seconds, checking that appliance goes OFF (indications on the display); Press and

hold down the key again, checking that the appliance switches ON and that the display

indicates this).

ECO key: with the appliance ON, press the key and check that the ECO icon is

activated on the display. Press the key again and the icon must be deactivated.

RESET ALARM RESET key: with the appliance ON, hold the refrigerator door open

for more than three to four minutes in order to force the door open alarm condition,

(indications on the display and buzzer sounding); check that alarm signalling stops on

pressing the key.

MODE key: (display models only) with the appliance ON, press the key repeatedly and

check that different functions are selected each time (SUPER COOL; SUPER

FREEZE; HOLIDAY; ICE PARTY; setting time, date, language in order).

ADJUST SELECT + and ADJUST SELECT - keys: with the appliance ON, press the

MODE key once to activate the refrigerator temperature setting condition; check that

the flashing temperature value on the display increases by 1 degree each time ADJUST

SELECT + is pressed and decreases by 1 degree each time ADJUST SELECT - is

pressed.

Wiring: (between the two boards) check for continuity and short circuits; check the

connections (connectors and terminals).

Board: carry out a quick visual check of the board (breakages or burnouts, etc.); check

by using a replacement.

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Ariston Fridge/Freezer Combined Specifiche Pagina 29