Operating instructions RolloTron swivel winder standard 1510/1550 Y. Beenen Updated November 23, 2023 16:34 Follow Download PDF Related articles Operating Instructions RolloTron Swivel Winder Comfort 1500/1540 Operating instructions RolloTron swivel winder standard DuoFern 2510/2550 Operating instructions RolloTron Basis 1100 The RolloTron only moves when the UP or DOWN button is pressed continuously, why? The roller shutter runs the wrong way round or reacts incorrectly. What can I do?