1. Reboot the Mixmate.

2. Check the wiring to make sure that all devices are plugged in and powering on.

3. Check to make sure you have the correct resistance in the power module. There should be 2 terminators in the system. With both terminators plugged into the harness and the POWER SHUT OFF, the easiest place to measure the resistance with a digital multi meter is inside the power module between the GREEN and YELLOW wires. If you have 2 good terminators the resistance should be around 60 ohms. The Mixmate will not work at all if the resistance is less than 50 ohms or greater than 135 ohms and may intermittently work or throw errors above 70 ohms.