Updated: 07.11.2026
The Thermal protection is a temperature switch in the tubular motor. It switches the motor off when it gets too warm due to continuous operation or overload. After cooling down, the motor runs again.
When does it trip?
- many runs in a row, e.g. when setting the end positions
- Overload due to a frozen or blocked curtain
- undersized motor
What to do?
Wait 15 to 20 minutes. If the motor still does not run, see Roller shutter motor not working. On the permissible running time: Duty cycle.
Frequently asked questions
Is the motor faulty if the thermal protection trips?
No, it is protecting itself. If it trips frequently in normal use, the motor may be too small.
Related terms: Duty cycle (ED) · Tubular motor
