LG · Refrigerator Serious

Er AS — / LAS / rAS — Auto-door reed switch fault

The reed (magnetic) switch that confirms door open/closed state for the auto-open door is failing or misaligned. Often shows as LAS (left) or rAS (right) on French-door auto-open models.

Keep using it?
Limited use only
DIY difficulty
Hard
Verified against
lg.com ↗

How to fix it

  1. Unplug for 5 minutes and retry.
  2. Inspect the door for sag — adjust hinges so the door magnet aligns with the upper-cabinet reed switch.
  3. Open the cabinet header per service manual to access the reed switch.
  4. Replace the reed switch if it doesn't change state with a magnet test.
  5. If issue persists, replace the door control board.

Why it happens

Typical signs: Er AS / LAS / rAS on display · Auto-door behavior erratic · Door may not auto-open · May cycle open/close incorrectly

  • Failed reed switch Magnetic switch in the door header failed.
  • Misaligned door magnet Door drooped — magnet no longer aligns with the switch.
  • Wiring fault at switch Broken wire to the switch.
  • Control board input fault Rare board failure on the switch input.

More LG refrigerator codes

22 22 — Compressor relay / inverter control fault 33 33 — Compressor / defrost test fault 67 67 — Door open / not fully closed 88 88 — Power-on display test (not a fault) Er CF Er CF — Condenser fan motor feedback fault Er CO Er CO — Communication error (main board ↔ display)

All LG 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: lg.com.