-Found system showing diagnostic error for broken blower belt again. -Examined parameters on VFD and found RPM set wrong according to motor data plate. Corrected parameter and observed motor torque readings. Verified findings versus prior RPM settings to confirm this was causing torque readout to go out of spec and cause error code. -Issue with error code should now be resolved. Install supervisor will follow up throughout the week. If problem persists throughout the weekend, install supervisor will schedule a call Tuesday.