Heater blower won't work

Disconnect neg / grnd battery cable. Replace Heater Blower Resistor. This will allow the heater blower to operate correctly

first check your fuses, then open the hood and check the connection to the heater, disconnect it and reconnect it , make sure the heater blower is on ,9 out of 10 its just a fualty connection

Could be the blower motor relay, the control panel on the dash, or the resistor.
You would need to check the blower motor for power and ground then work back to the fuse. I think the relay is in the box near the battery.

It sounds like the brushes on armature for (blower motor ) are worn. Sometime a bad spot on the armature from not being used often and also by being in the engine compartment where it is exposed to condensation. When the brushes stop at that particular spot, the blower will not start spin process unless it draws alot of current that may be why the fuse blew. You can remove the blower and examine or just make the change.

No it won't.The brake switch is for brake light,interlock shift solenoids,transmission TCC controls,and stoping the vehicle, You fan blower has a completely different power supply that is independant from the brake electrical system, For you fan blower to operate its either the fan resistor blower or the fans control switch to the fuse

Check fuse first, then blower resistor on plenum for continuity between resistive elements. Replace if no continuity. It should be on top of plenum about a handspan or two from the blower motor.

CHECK AC AND HEATER CONTROL FUSE. IF FUSE OKAY CHECK BLOWER SEE IF POWER GOING TO BLOWER MOTOR IF YES BLOWER MOTOR MORE LIKELY FAULTY.IF NO POWER GOING TO BLOWER MOTOR CHECK BLOWER MOTOR FUSE ANDRELAY.

fan motor,fuse or fan ressistor.hope this helps

should be on passenger side wall under dash,30a fuse just under heater relay!