Hi Amanda! Begin by checking the power supply to the RT-3000-P. Ensure it’s receiving the correct voltage. If the power is okay, inspect the wiring connections for any loose or damaged wires. Verify that the sensors are clean and free from obstructions. If issues persist, consult the RT-3000-P manual for error codes or specific troubleshooting steps. Feel free to provide more details, and we’ll assist you in resolving the problem!