Whirlpool Cassinetta - Communication Failure Indication CF & Bad Connections Check

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Troubleshooting & Diagnostic:
Communication failure indication “CF” on the freezer display
What you have to check for bad connections:
PINS:
 DAMAGED
 DIRTY
 NOT PROPERLY
INSERTED
CONNECTORS:
 DAMAGED
 DIRTY
 BATHED
 NOT PROPERLY
COUPLED
BOARD CONNECTORS:
 CRUSHED
 DIRTY
 DIRTY PINS

NOT PROPERLY S
OLDERED
WIRES:
 CUTTED
 BURNED
Communication failure between
Main Board and User Board.
Check
ALL
the connections (see pictures below)
Connections are all good? Pins are all inserted?
Replace the User Board and, if the problem
persist, replace the Main Board
Indication “UU” on the freezer
display (only for 2007 range
appliances and following):
There is communication between
Main Board and User Board is
OK, but the boards are not
compatible. Check the board
codes and replace the wrong
board.