My ford explorer ac works in rear but not in front

Hello, sounds like a concern with the front ventilation blower motor system. This could originate from a concern with the blower motor itself, the wiring, connector, resistor, relay, blower speed controller or control unit. Diagnostic testing is needed to see what's going on. Use this link to find some shops near you that can help with your concern: www.repairpal.com/repair-shops