We moved the tub from a friends house to our house. Hot Tub was working perfectly before we moved it. It is connected to a 50 amp power supply, 6 gauge wiring approximately 40 feet from breaker box. wired to a disconnect box on the hot tub with a 50 amp GFI. I have power, display comes on, looks like everything would work. However, it has a "lock" icon in the upper right corner. According to the instructions, the lock mode is a feature to deter unwanted use. To unlock, you are supposed to press DISPLAY, MODE and COOLER (-). Within 5 seconds, the tub should unlock. But, stays in the "lock" mode.

Pool & Spa - Jacuzzi