To determine whether you have a hardware problem:

1. Turn the box off and on again
2. Are the sensors are plugged into the right connections? The 3-pin air temperature/humidity sensor must be plugged into the correct port otherwise it may be damaged ( The water valves are also a 3-pin port ).

If the air temperature sensor still does not show data, it’s possible it has become damaged, usually by plugging into the wrong port. Spares are available online.