Off-track curtains occur when sheared end-locks allow 75mm galvanized laths to slide sideways and jam inside the guide throat.
Van Fix: Never force the switch down (it uncoils the barrel inside the hood). We clamp the drum, straighten guides, and rivet new end-locks.
Forklift impacts and crowbar attacks crease bottom T-bars, twist steel side guides, and jam bullet lock pins.
Van Fix: We attend Waltham Forest (E4) 24/7 to strip damaged sections, slide in new steel laths, and lock down your premises securely.
Complete loss of response stems from rainwater-corroded exterior key switches, blown control PCB fuses, or a triggered safety edge.
Van Fix: We carry weatherproof armoured key switches, single/3-phase control PCBs, safety edges, and rolling-code fobs for instant repair.
A humming motor indicates a failed starter capacitor, a locked electromagnetic brake coil, or stripped internal crown gears.
Van Fix: Stop pressing the switch to prevent winding burnout—we fit a new capacitor, 240V tubular motor, or 415V drive on site.