Hi Sophia, sorry to hear about the issues. First, check the power supply to the Edwards EST G4AVRF. Ensure it’s getting the proper voltage. If that’s okay, inspect the wiring connections, making sure they are secure and not damaged. Additionally, review the device programming to confirm it aligns with your system requirements. If problems persist, let me know if there are any error messages or specific behaviors you’ve noticed, and we can dig deeper into the troubleshooting process.