Specifications

Merloni Elettrodomestici
FULL NO FROST COMBINED UNIT (2003)
Technical Manual
GB 04-10-28/01 26-43
Language Issue/Edition Page
9. Buzzer
Buzzer operation is closely tied to the signalling and alarm functions.
The buzzer is soldered onto the power board on the instrument panel.
POSSIBLE CAUSE OF MALFUNCTION:
Microprocessor management
Control circuit on the board
Buzzer
TESTING:
General on the appliance and component: a quick check can be that (with the
appliance ON) of keeping the refrigerator door open for more than three to four
minutes in order to force the door open alarm condition; checking that the buzzer
starts to sound and goes off simply by closing the door (its failure to activate could also
be due to a malfunction of the magnetic reed on the board).
Board: carry out a quick visual check of the board (breakages or burnouts, etc.);
check by using a replacement.