Hormann Thermal Overload or Duty Cycle Limit Reached

Operator runs for a moment then stops, light flashes a fixed number of times

Possible Causes

Too many consecutive cycles, High ambient temperature, Motor overheating, Blocked ventilation around operator

Safety first: Allow the operator to cool; do not bypass thermal protection.

Step-by-step:

Rest period: Leave the operator off for 20–30 minutes to cool down.
Check usage: Hormann operators have a limited duty cycle. Avoid repeated rapid cycling beyond the specified limit.
Improve ventilation: Ensure the operator housing is not covered and that there is airflow around it.
Inspect for drag: Verify that the door moves freely; excessive load will overheat the motor.

Very Easy 1/5

Motor Thermal Protection (no replacement unless motor damaged)

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