sy cf
Moderate
Frigidaire · Refrigerators
Communication Failure Between Main Board and Display Board
Quick Answer
Error code SY CF on your Frigidaire Refrigerators means: Communication Failure Between Main Board and Display Board. This is usually fixable — see the step-by-step guide below.
Affected Models
Applies to all models
Likely Causes
How to Fix It
1
Unplug the refrigerator for 5 minutes and restore power to attempt a communication reset
2
If the error returns, locate the main control board (rear lower panel) and the display board (top front of the refrigerator inside the fresh food section or on the door)
3
Check the wiring harness between the two boards for damage, pinch points, or loose connectors
4
Reseat all connectors firmly at both the main board and the display board
5
If connections are secure and the error persists, replace the main control board first, then the display board if needed
Pro Tip
This fix requires some technical knowledge. If you're unsure about any step, consider contacting support or a qualified technician.
Parts You May Need
Main control board (model-specific)
Display/user interface board (model-specific)
Wiring harness
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