I am stumped. The ac in our 2012 mazda 5 had quit blowing, you could feel cool just no blower. Replaced the serpentine belt, blower motor resistor, blower fan relays cabin air filters and fuses. Still no fan. Today started working no problem what could cause this besides a short? Would a lower amp battery cause this maybe? I have spent too much to give up now, but really don't want to take it to a shop. I have trust issues lol