Overheating

Long story short I bought a new radiator fan assembly from z1 (new module and everything), car overheated after sitting for a couple minutes at a stop. Seen the fan wasn’t kicking on. Checked the relay by the battery that says (fl50a rad fan) and it was blown so I changed it today. Bought a new coolant temp sensor and changed that today as well. Fan still would not turn on what could it be?????