Otis Gen2: Scratch

| Symptom | Possible Root Cause | Associated Fault Codes | |---------|--------------------|------------------------| | Rhythmic scratching during travel | Debris on belt or sheave grooves | None directly; audible only | | Intermittent high-pitch scratch | Misaligned diverter pulley | TCI/DRS faults (2724, 2725) | | Scratch marks on belt edge | Worn guide shoe or rail burr | 2900 series (door/gib faults) | | Scraping near machine | Belt contacting structural member | OTP (Overspeed) or SE-Fault |

Over time (typically 8–12 years), the polyurethane jacket hardens due to ozone exposure and thermal cycling. Hardened belts lose flexibility. As they bend around the sheave, the rigid jacket cracks, exposing the internal steel cables. Once exposed, those steel cables grind directly against the sheave groove, creating an unmistakable deep scratch. otis gen2 scratch

The Otis Gen2 scratch is more than an acoustic nuisance; it is a diagnostic signal. It tells you that the friction balance between belt and sheave has failed. Whether caused by dust, misalignment, or worn polyurethane, every scratch is a countdown to a more expensive failure. | Symptom | Possible Root Cause | Associated

As a building owner or facility manager, your protocol should be: Modernize your maintenance mindset, and your Otis Gen2

Modernize your maintenance mindset, and your Otis Gen2 will reward you with decades of silent, reliable vertical transportation.

Looking for certified Otis Gen2 repair technicians in your area? Find our directory of factory-trained specialists below. (CTA)