Roller Shutter Jammed or Won't Move – Step by Step

A jammed roller shutter usually has one of three causes: dirty guide rails, a bent slat, or a broken strap. Step 1: Clean the side guide rails with a damp cloth, then apply a small amount of silicone spray (not oil, as it attracts dirt). Step 2: Check whether any slat is bent – individual slats can carefully be straightened by hand. Step 3: If the strap is torn or stretched, it can be replaced with a new one from a hardware store (approx. £5) – many tutorials walk you through the replacement step by step. For electric roller shutters: Always switch off the circuit breaker before working near the motor, and consult an electrician if in doubt.