Operator light flashes but door does not move when command is given

Safety first: Ensure the door is stable and cannot fall before re‑engaging the operator.

Step-by-step:

• Check carriage position: Look along the rail to see if the carriage is engaged with the chain/belt. If it is in the released position, move it manually to the engagement point.
• Re‑engage: Follow Hormann instructions (usually moving the door or carriage until it clicks into the drive shuttle).
• Inspect for wear: If the carriage teeth or release lever are worn or cracked, replace the carriage assembly.
• Test: Run an open/close cycle and confirm the carriage stays engaged.