A snapping sound often indicates a stretched transmission cable. In Sidcup, we replace these with steel-core timing belts that resist stretching. We also inspect the hanger bearings. Replacing worn rollers eliminates drag, allowing the door to glide effortlessly.
The heart of your system in Sidcup is the High-Torque Drive Unit. When these fail, you might hear mechanical shuddering. We diagnose specific faults like stripped nylon gears and replace the unit with OEM parts to restore factory performance.
False activations, known as phantom opening, are common in Sidcup due to weather interference. We calibrate Hotron sensors to ignore interference. Crucially, we test the light curtain presence sensors to ensure the door never closes on a pedestrian.
Fitting new DC motors and gearboxes.
Adjusting radar for weather in Sidcup.
Diagnosing and fixing logic errors.
Full BS EN 16005 compliance checks.