24/7 rapid response for Herne Hill businesses.
Fitting new DC motors and gearboxes.
Replacing dead UPS packs for safety.
Diagnosing and fixing logic errors.
The core of your system in Herne Hill is the High-Torque Drive Unit. When these fail, you might hear grinding noises. We diagnose specific faults like stripped nylon gears and replace the unit with OEM parts to restore silent operation.
A snapping sound often indicates a frayed drive belt. In Herne Hill, we replace these with reinforced Kevlar belts that resist stretching. We also inspect the carriage wheels. Replacing worn rollers eliminates drag, allowing the door to glide effortlessly.
False activations, known as random cycling, are common in Herne Hill due to weather interference. We calibrate Optex sensors to ignore interference. Crucially, we test the active infrared safety beams to ensure the door fails safe.