The basic reason why the intelligent temperature and humidity controller is not bright:

The failure of the intelligent temperature and humidity controller is basically a problem of power supply. The first thing to check is the auxiliary power supply of the meter. The auxiliary power supply is standard (AC/ dc85-270v), and it is not enough to have a suitable auxiliary power, and the auxiliary power of the intelligent temperature and humidity controller is required to connect to the auxiliary power terminal of the instrument. Morning star electric reminder: if the range of auxiliary power supply exceeds the specified standard, it may damage the temperature and humidity meter, and it is not recoverable.

Measurement method of voltage value of instrument auxiliary power supply:

The most commonly used measure of temperature and humidity controller's auxiliary power supply voltage is the multimeter. If the multimeter is used here, it will not be detailed. It is good to be careful when operating. If the measured voltage values are normal, but the meter still does not show, please turn off the intelligent temperature and humidity controller and restart it.

If you have tried the above two steps and still haven't solved the problem, you can consult us for your guidance or contact the manufacturer directly for handling.