Innovision

The Oti* Elevator Service Tool, particularly the GAA21750AK3 model (also known as the Blue Test Tool), is a specialized diagnostic device used for servicing and troubleshooting Otis elevator systems.

Here’s a detailed breakdown of its features, compatibility, and usage:

🛠️ Key Model: GAA21750AK3 (Blue Test Tool)

• Purpose: A critical diagnostic and debugging tool for Oti* elevators and escalators.
• Functionality:
  • Interfaces directly with Otis control systems.
  • Allows technicians to diagnose faults, adjust parameters, and monitor system performance.
  • Supports unlimited usage cycles (omnipotent version).
• Part Numbers: GAA21750AK3 and GAA102BDX3 are commonly referenced variants.

🔧 System Compatibility

This tool works with a wide range of Oti* systems and components:

• Elevator Models: ACD1–ACD4, GEN2, SKY, OH-CON, OH1000–OH5100, 2000–3300, STAR, HOMELIFT, 21VH
• Inverters: SIEI (AVY, AVO, AVS), OVF20, OVF30
• Door Controllers: DCSS4, DCSS5, DO3000, Easy-con, Jarless-Con
• Motherboards: GECB, LCB_II, ALMCB, TCBC, TCEC, RCB2, GDCB

��️ What is the KON* CPU40 Elevator Tool?

• Model Number: KM878240G01 (also compatible with CPU561 and CPUNC)
• Function: It’s a decoder and diagnostic tool designed to interface with KON* elevator control systems, particularly those using CPU40 boards.
• Usage: Enables technicians to perform service tasks, decode faults, and run diagnostics on KONE elevators. It supports unlimited usage and decoding cycles.

�� Key Features

• Compatibility: Works with KON* CPU40, CPU561, and CPUNC systems.
• Part Number: KM878240G01