Electrolux Refrigerator Error Code SY CE

SY CE means the refrigerator's Main Control Board and User Interface established a communication link at startup but then lost it during normal operation. The code flags a break in the data connection between these two components, which can result from a wiring fault, a bad connector, or a failed board. It differs from a pure startup failure because communication was confirmed first and then dropped.

It depends on how the unit is behaving. If the refrigerator is still cooling and the only symptom is the error code, food is not in immediate danger for a short period. However, because the Main Board and UI are no longer communicating reliably, temperature regulation and control functions may be compromised without any visible warning. Leaving the unit running in this state for an extended time risks food spoilage, so address the fault as soon as possible.

A power reset may clear SY CE temporarily if the root cause is a software glitch or a transient signal dropout, but the code will return if there is an underlying wiring or component problem. If SY CE comes back after a reset, the unit requires a physical inspection of the harness and connectors above the FF door hinges and at both boards before the issue can be resolved permanently.

Start by unplugging the refrigerator and inspecting the wire harness that runs above the fresh food door hinges, then check the connectors at both the User Interface board and the Main Board. Reseat any loose connectors and look for broken or pinched wires. If the code returns after restoring power, test continuity through the harness with a multimeter. Persistent SY CE after confirming good wiring points to a failed Main Board or UI board, both of which require replacement.

If the fix is simply reseating a connector or replacing a section of wiring harness, parts cost is low, often under $30, and the repair is within reach for a careful DIYer. A replacement Electrolux Main Control Board typically runs $100 to $250 depending on model, and a UI board is often in the $50 to $150 range. Adding a professional technician's labor, expect a total repair bill between $200 and $400 if a board replacement is needed.