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# CCT Point IO AO Card Fault
Here is a summary of the work completed to resolve the issue with the analog output card driving the chemical pump speed.Upon investigation, I found the module was faulted. Working with Mychal onsite, we followed a structured troubleshooting approach: 1. Attempted a software reset of the module.
2. Power cycled the module.
3. Powered down, reseated, and powered back on.
4. Replaced the module with a spare.When these steps did not resolve the issue, I collaborated with Rockwell support. Together, we: • Tested the module in isolation by removing other modules.
• Checked software and firmware versions.
• Re-flashed both the PLC and the Point I/O module with the existing firmware to address potential memory corruption.After downloading necessary components and completing several reboots and power cycles, the module returned to a fault-free state. We successfully tested PLC control of the chemical pumps, confirming proper operation.