Sommer Force Reversal Due to Obstruction or Sensitivity

Door starts to open or close then reverses immediately without reaching the end of travel; no error code shown.

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Safety Warning

This repair may involve working with high voltage components or water connections. Always unplug the appliance before removing any panels.

If you are not confident in your ability to perform this repair safely, we strongly recommend contacting a professional technician.

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Possible Causes

Door binding in tracks, Overly sensitive force setting, Warped door sections, Loose or misaligned rail

How to Fix / Troubleshooting

Safety: Do not increase force until you have verified the door moves freely by hand.

  • 1. Manually test door: Disconnect the opener and move the door. Fix any binding, bent tracks, or damaged rollers.
  • 2. Inspect hinges and rollers: Tighten loose hinge bolts and replace worn rollers. Lubricate moving metal parts.
  • 3. Check rail alignment: Ensure the Sommer rail is straight and parallel to the door travel. Adjust supports if the rail is sagging or twisted.
  • 4. Fine‑tune force: Slightly increase the Sommer force setting per the manual, then test. Stop if the door closes firmly but safely without reversing.
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Repair Difficulty

Medium 3/5

Required Part

Sommer Force Adjustment (on Control Board)
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