E13
Henderson Soft Stop / Close Position Error

Door reverses just before fully closing; opener shows E13.

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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

Incorrect close limit setting, Slipping drive sprocket on shaft, Worn limit encoder, Door hitting raised floor seal or threshold

How to Fix / Troubleshooting

Safety first: Keep the area under the door clear while adjusting limits.

Steps:

  • Check floor contact: Inspect the bottom seal and floor. If a new threshold or thick seal was added, the door may meet resistance early and trigger reversal.
  • Reprogram close limit: Enter limit programming mode on the Henderson opener and reset the closed position so the door stops firmly on the floor without excessive force.
  • Inspect drive sprocket: Remove the opener cover and check that the chain/belt drive sprocket is tight on the motor shaft. Tighten the set screw if loose.
  • Check encoder: Examine the limit encoder or magnet strip for damage or looseness. Replace the Henderson limit encoder assembly if worn.
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Repair Difficulty

Medium 3/5

Required Part

Henderson Limit Encoder Assembly
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