Replacing a Warema external venetian blind motor: suitable replacement

Suitable replacement actuators in our shop: Chain actuators

Updated: 07.11.2026

In brief: You can replace a faulty external venetian blind motor in a Warema system with a motor of another brand if torque, speed, shaft connection and installation dimensions match. The values are on the motor’s rating plate or in the system documents.

These values are needed

• Torque in Nm (usually 6 or 10 Nm for window blinds)
• Speed in rpm
• Shaft connection (shape and size of the drive shaft) and output on one or both sides
• Operation: Cable with blind switch or radio
• Length and profile of the head rail

Replacement from A-OK

Details: A-OK AM55 external venetian blind motor. Send us a photo of the rating plate – we will check whether the motor fits.

What to look out for

• Choose the same or slightly higher torque.
• Old radio transmitters usually do not work with the new motor – a new transmitter is part of the job.
• End positions are taught again, see External venetian blind motor: setting end positions.
• The mains connection is made by a qualified electrician.

Frequently asked questions

Does every external venetian blind motor fit a Warema head rail?

Not automatically. Shaft connection, output sides and height are decisive. With the rating plate and the head rail dimensions we can check this.

Do I have to replace the entire system?

No. Usually only the motor in the head rail is replaced; slats and tapes remain.

Further replacement guides: Somfy, Becker, Elero, Selve.

All guides on roller shutter, awning and external venetian blind motors: Sun protection guide.

Advice on the right motor

Send us the shaft diameter, curtain size and material – we will name the right A-OK motor. Phone 040 50694631 (Mon–Fri 8 am–5 pm) or via the Contact form. All motors at a glance: Sun protection motors.