Ariston Fridge/Freezer Combined Dokumentacja Pobierz pdf (Strona 17)

Merloni Elettrodomestici

FULL NO FROST COMBINED UNIT (2003)

Technical Manual

GB 04-10-28/01 17-43

Language Issue/Edition Page

4. Fridge fan

The purpose of the fridge fan is to take the cold from freezer compartment to the

inside of the refrigerator compartment. By means of special ducting it draws the cold

air from the freezer and distributes it in the refrigerator compartment through openings

on the multiflow. The fridge fan, located on the bottom of the compartment, is

managed by the board.

When the refrigerator compartment demands refrigeration, the compressor is fed and

the fridge fan is switched on after 1 minute. When the refrigerator compartment

demands more refrigeration, the fan is switched off, even if the compressor could

remain on due to a demand for refrigeration by the freezer compartment.

Particular situations

•with Refrigerator Door open the fridge fan is not fed, even if the compressor is

working, and will be switched on again only when the refrigerator door is closed.

The fridge fan can be on even if there is no demand for refrigeration by the

refrigerator compartment. In fact, if the refrigerator door has just been closed the

fan is switched on for 3 seconds to prevent the hot and moist air that just has

entered the refrigerator compartment from descending through the delivery ducting

and freezing on the evaporator.

• after defrost: at the first switching on of the compressor after a defrost, in addition

to the 5 minute time delay for fan switching on, there is also a wait for the

evaporator coil to reach -17 °C.

POSSIBLE CAUSE OF MALFUNCTION:

Board management

Fan control circuit on the board

Connection on the board

Wiring harness

Fan connections

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.

Component: check that the component is fed; directly check the fridge fan

(fed directly with special wiring).

Electronic 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 Dokumentacja Strona 17