Wait until the LCP (Local Control Panel) display turns off completely. Reconnect the power and see if the error clears. Disconnect mains power and wait for the display to go dark.

: A physical defect in the communication bridge between the control card and the power card.

Press and hold the , [Main Menu] , and [OK] keys simultaneously.

Apply power while holding these keys for at least 5 seconds. Note: This will erase all your custom parameters.