Communication Failure Indication "Cf" & Bad Connections Check - Whirlpool Cassinetta Repair Manual Line

Troubleshooting & Diagnostic:
Communication failure indication "CF" on the freezer display
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
What you have to check for bad connections:
CONNECTORS:
 DAMAGED
 DIRTY
 BATHED
 NOT PROPERLY
COUPLED
WIRES:
 CUTTED
 BURNED
Indication "UU" on the freezer
display
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 CONNECTORS:
 CRUSHED
 DIRTY
 DIRTY PINS
 NOT PROPERLY SOLDERED
PINS:
 DAMAGED
 DIRTY
 NOT PROPERLY
INSERTED
(only for 2007 range
board.
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