Opener runs but stops unexpectedly and displays E6; may occur more often in cold or hot weather.

Safety: If you smell burning or see smoke, disconnect power immediately and do not reuse the opener until inspected.

• 1. Allow cool‑down: Unplug the opener for 20–30 minutes to let the motor cool. Plug back in and test.
• 2. Check door balance and hardware: Disconnect the opener and move the door by hand. If it is heavy or binds, have springs and hardware serviced. Lubricate hinges and rollers.
• 3. Inspect the rail interior: Remove the motor carriage (per Sommer instructions) and check for debris, dents, or dried grease inside the rail. Clean and apply a light, manufacturer‑approved lubricant if specified.
• 4. Reduce force settings: If force was previously increased to compensate for a stiff door, correct the door problem and then reduce force to factory‑recommended levels.
• 5. Re‑test with door disconnected: Run the motor carriage alone along the rail. If E6 still appears, the motor carriage assembly is likely failing and should be replaced.