Ariston Fridge/Freezer Combined Dokumentacja Pobierz pdf (Strona 15)

Merloni Elettrodomestici

FULL NO FROST COMBINED UNIT (2003)

Technical Manual

GB 04-10-28/01 15-43

Language Issue/Edition Page

The start and end of the defrost phase are controlled by the electronic board, taking

into account:

Start of defrost

• total compressor On time from last defrost (on average11 hours). In any case the

period between two defrosts will be: max. 30 hours, min. 8 hours.

• duration of last defrost

• number of door openings

End of defrost

• reaching the temperature of approx. 15 °C on the evaporator and in any case

approx. 40 minutes after the start of defrost.

POSSIBLE CAUSE OF MALFUNCTION:

Board management

Heating elements control circuit on the board

Connection on the board

Wiring harness

Thermal fuses

Connection on heating elements

Heating elements

Drain hole blocked

TESTING:

General on appliance: carry out the check using the Autotest procedure.

Wiring: check for continuity and short circuits; check the connections (connectors and

terminals); check whether voltage is available; check non-opening of thermal fuses;

Component: check that the component is fed; directly check the heating elements

(fed directly).

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

check by means of replacement.

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Ariston Fridge/Freezer Combined Dokumentacja Strona 15