Frigidaire · Dryer Moderate

E71 — UI / main control communication error

The user interface and main control are powered but cannot communicate properly. Often a harness, less often one of the two boards.

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

How to fix it

  1. Unplug the dryer.
  2. Open the top panel and reseat all connectors between UI and main control.
  3. Inspect the harness for damage or pinch points.
  4. Power up. If code persists, swap UI board first (most likely).
  5. If still failing, replace main control board.

Why it happens

Typical signs: E71 displayed · Settings won't change · Dryer ignores Start · Display shows but no response

  • Loose or damaged communication harness Most common — between UI and EOC.
  • Failed UI board Outgoing comm circuit dead.
  • Failed main control board Incoming comm circuit dead.

Parts you may need

If diagnosis points to a failed part, these are the common replacements. As an Amazon Associate we earn from qualifying purchases.

  • Frigidaire dryer UI board Common replacement
    Amazon →
  • Frigidaire dryer main control board Common replacement
    Amazon →

More Frigidaire dryer codes

AD AD — Automatic dry / sensor dry not detecting moisture AF AF — Restricted airflow E11 E11 — Cycle taking too long E4A E4A — Inlet thermistor open E4B E4B — Inlet thermistor shorted E5A E5A — Heater on but no temperature rise

All Frigidaire codes → All dryer 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.