Dear Bigolin,

Please check the wires. Are they loose or disconnected from the slots? Please check if the valves are connected correctly. If you believe the wires are correctly installed,  please check if there is a main valve/faucet that is turned off manually. 

Could you please also check whether there are shorted zones or open zones? You just need to use a multimeter to measure the resistance between the common wire and each zone (remove the wires from the slots before testing the resistance). The normal reading would be 20-60 Ohms. If the reading is less than 10 Ohms then you might have a shorted circuit in the solenoid and if it is larger than 80 Ohms you might have an open circuit. 

Thanks,

Wency

Netro Support