In brief: Here you will find all Vent Systems guides on roller shutter, awning and external venetian blind motors: retrofitting, connecting, replacing, controlling and troubleshooting. We supply the A-OK motors mentioned to order, from €65 net.
Retrofitting and costs
- Replacing a belt winder with a roller shutter motor: how the conversion works
- Motorising roller shutters: what does it cost?
- Solar roller shutter motor: motorising roller shutters without a power cable
- Retrofitting a roller door motor: torque, shaft and manual override
- Roller shutter anti-lift device: burglary protection with a motor
- Tubular motor 35 or 45 mm? Choosing the right size
- Motorising curtains
- Battery roller blind motor: charging, running time and use
- Motorising an insect screen blind
Connecting and setting
- How to connect a roller shutter motor: wires, switch and end positions
- Connecting an awning motor and setting the end positions
- External venetian blind motor: setting end positions and wiring
- Changing the direction of a roller shutter motor: how it works
- Saving an intermediate position for roller shutters: ventilation and sun position
- Tubular motor: mechanical or electronic – differences and selection
Control and smart home
- Retrofitting radio control to roller shutters: motor, hand transmitter and pairing
- Automatic roller shutter control: timer, sun and wind sensor
- Making roller shutters smart: Zigbee, Wi-Fi, app and voice control
- Central control of several roller shutters: groups, radio and isolating relays
- Awning with wind sensor: retracts automatically in a storm
- Motorised conservatory shading: motor, control, sensors
- Controlling roller shutters with Alexa or Google Home
Troubleshooting and operation
- Roller shutter motor not working: causes and solutions
- Roller shutter frozen: what to do and how to prevent it?
- Opening roller shutters during a power cut: manual crank and alternatives
- Quiet roller shutter motor: causes of noise and solutions
- Roller shutter motor power consumption: what does operation cost?
- Getting roller shutters ready for winter
Replacing a motor by brand
- Replacing a roller shutter motor: step-by-step guide
- Replacing a Somfy tubular motor: finding a suitable replacement
- Replacing a Becker tubular motor: suitable replacement motor
- Replacing an Elero tubular motor: suitable replacement motor
- Replacing a Selve tubular motor: suitable replacement motor
- Replacing a Warema external venetian blind motor: suitable replacement
Changing brand: what you need to check
When replacing a branded motor, diameter, torque, speed and adapters matter – not the brand. Radio transmitters are manufacturer-specific and are usually paired again.
| Old motor | Check | Suitable A-OK type |
|---|---|---|
| Tubular motor 35 mm, small shaft | Torque, shaft (e.g. 40 mm octagonal) | AM35 (6/10 Nm) |
| Tubular motor 45 mm, switch | Torque, speed, 60 mm shaft | AM45 mechanical (15–50 Nm) |
| Tubular motor 45 mm, radio | Torque, new transmitters | AM45 radio (6–30 Nm, 868 MHz) |
| Awning motor with crank | Torque, crank connection | AM45E (30–50 Nm) |
| External venetian blind motor | Torque, shaft connection | AM55 (6/10/20 Nm) |
| no power at the window | Torque | AM45 battery solar (10/20 Nm) |
Tools and terms
- Roller shutter motor calculator (torque)
- Roller shutter motors compared
- Tubular motor
- Octagonal shaft
- Isolating relay
- Thermal protection
- External venetian blind
- Emergency hand crank
- Roller shutter curtain
- Shaft connector
- Radio frequency 433 and 868 MHz
- A-OK catalogue 2026 (overview and PDF)
Frequently asked questions
Which motor suits my roller shutter?
Shaft diameter and torque are decisive. 45 mm motors fit the common 60 mm octagonal shaft, 35 mm motors fit 40 mm shafts. Calculate the torque with the roller shutter motor calculator.
Does Vent Systems also supply specialist companies?
Yes. Roller shutter installers and electrical contractors receive dealer terms, see for roller shutter installers.
Advice
Send us the shaft diameter, curtain size and material – we will name the right motor. Phone 040 50694631 (Mon–Fri 8 am–5 pm) or Contact form. All motors: Sun protection motors.
Questions? 040 50694631 · info@ventsystems.de
