Automatic sliding door repair

Sliding operators fail in recognisable ways, and the symptom usually points straight at the component:

• Grinding or scraping as it travels — worn carriage rollers or debris in the floor guide. Left alone, the leaves drop and start chewing the track, turning a cheap roller swap into a track replacement.
• Door hesitates, reverses, or slams — drive belt wear or controller faults; belts stretch and their teeth strip with age.
• Opens for trolleys but not people (or vice versa) — activation sensor drift or misalignment; recalibration to BS EN 16005 detection requirements.
• Stuck closed with a dead display — power, fuse or controller failure; often repairable at board level or by module swap.
• Stuck open — frequently a safety sensor seeing a “ghost” obstruction: low winter sun, rain on the lens, a new floor mat. A calibration issue, not a broken door — but the heat loss is real.

Every repair visit ends with a force test and sensor check against BS EN 16005, because a sliding door that closes on a customer is a far bigger cost than the repair. For swing operators and drive arms, see our drive arm repair service; for the wider service, automatic doors.