During the operation of the OTC DAIHEN Welding Robot, if the system experiences abnormalities such as insufficient coating material, sealing ready timeout, analog input board not installed, or force/torque sensor failure, the teach pendant will usually display a hardware and control-level alarm in the 2825 to 2851 range. If these faults are not investigated promptly, they may cause serious operational safety hazards or damage peripheral devices.
To help on-site engineers and mechanics quickly locate problems, we have organized the diagnostic terminology from the official maintenance manual to provide you with the following intuitive fault quick reference table. We recommend using the search function, entering the error code (e.g., 2825), to accurately obtain troubleshooting and processing suggestions.
I. OTC Robot Alarm Code Real-Time Quick Reference Table (2825-2851)
| Alarm Code | Fault Phenomenon | Fault Cause Analysis | Countermeasures & Solutions |
|---|---|---|---|
| 2825 | Flow Ready Exception | The set pressure was not reached within the time set by the constant. | Confirm whether the specified pressure is appropriate, and then reset the exception. |
| 2826 | Material Shortage | The sealing material in the pump is less than the specified amount. | Modify the reload time, and then reset the exception. |
| 2827 | Sealing Not Completed | The robot stopped during flowing or the pump position reached the flow limit. | After performing the reload operation, eliminate the cause of the stop or modify the flow time, and then reset the exception. |
| 2828 | Cannot Execute Sealing Operation | Other sealing operations are in progress. | Modify the operation time, and then reset the exception. |
| 2829 | Reload Operation Not Completed | Because the motor is set to OFF during reloading, the reload operation cannot be completed. | Modify the operation time, and then reset the exception. |
| 2830 | Coating Not Completed | Reached the flow limit. | After performing the reload operation, modify the flow time, and then reset the exception. |
| 2831 | Analog Input Board Not Installed | The analog input board is not installed, but it is set to use the thermal sensor and pressure sensor. | Modify the set values or install an analog input board, and then reset the exception. |
| 2832 | Cannot Execute Coating Function | The specified welding gun is not defined in the device. | Modify the program, and then reset the exception. |
| 2850 | Executed an Unallowed Command in a Control Device With a Force/Torque Sensor | In a control device with a force/torque sensor, commands other than analog input using the force/torque sensor (such as SPDDOWN) cannot be used. | Modify to not use the analog input utilizing functions such as force/torque sensors in the same control device. No reset operation is required. |
| 2851 | Cannot Execute Force/Torque Sensor Function | The force/torque sensor function is invalid. | Modify the parameters, and then reset the exception. |
II. Get Professional Technical Support and Maintenance Services
When the robot frequently displays the above hardware-level alarms, and routine reset attempts are ineffective, do not forcefully pull the robot arm or repeatedly force restarts, so as not to cause secondary irreversible damage.
Contact Anhui Oujie for Technical Guidance
- System Recovery & Hardware Repair: Manager Fang
- Service Hotline (WhatsApp): 180-9663-1656
- Official Email: ahojotc@gmail.com


