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Blown fuse.
If by quit working you mean quit blowing, the things to troubleshoot are the blower motor, the blower motor resistor switch, or the blower motor speed selector switch. If by quit working you mean it only blows cold or warm air, the thermostat is probably stuck in the open position.
my 2005 dodge caravan front blower worked in the pm for the last time the back one still works. found the fuse box under the hood is there another inside the van?
Could be, Blown fuse, Bad blower motor, Bad blower motor speed resistor, Bad blower switch,
Your blower motor is going out. Be prepared to replace it soon or it will just quit working all together.
tHERES A RELAY BEHIND THE GLOVE BOX THAT BURNS OUT THAT MUST BE REPLACED.
The blower motor resistor is bad.
Blown fuse? Bad relay? Bad switch? Burned out motor?
Check fuse if the blower is not working. If it is then replace your heater core. if its not then replace your fan switch.
Because they are two separate units independent of each other.
Check your fuses in your fuse panel usually that is what is wrong when cigarette lighters and radios quit working.
Blower motor resistor is the most common problem. it is held in by 2 screws under the glovebox area. Easy to replace.