Frigidaire · Refrigerator Moderate

SY CE — Communication Error at Startup

Brief communication error when the unit first powers on — often clears itself after the boards complete handshake.

Keep using it?
Yes, with caution
DIY difficulty
Easy
Verified against
frigidaire.com ↗

How to fix it

  1. Unplug refrigerator for 2 minutes, then plug back in.
  2. If code clears and does not return, no service required.
  3. If recurring, reseat the UI-to-main-board harness.
  4. Plug refrigerator into a different outlet to rule out a flaky circuit.
  5. If still recurring, treat as SY CF and replace UI board, then main board if needed.

Why it happens

Typical signs: SY CE flashes briefly at power-up · Display blank for a few seconds · Resumes normal operation after self-clear

  • Slow handshake between UI and main board Cold-boot timing miss between the two MCUs.
  • Marginal harness connection Connector partially seated.
  • Brief power dip Brownout during startup.

More Frigidaire refrigerator codes

1F 1F — Ice Maker Fault 1 SH 1 SH — Fresh Food Sensor Shorted 1 SY 1 SY — Fresh Food Sensor Open 2 SH 2 SH — Freezer Sensor Shorted 3 SH 3 SH — Temperature Sensor Short 3 SY 3 SY — Evaporator Sensor Open

All Frigidaire codes → All refrigerator codes →

Always unplug an appliance before servicing it. This guide is for informational purposes and is not a substitute for a qualified technician. Verified against manufacturer documentation: frigidaire.com.