Q: Q: Having heater problems

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The blower used to work on speeds 1 through 4 and I got a short in the wiring I fixed it in the meantime it blew a fuse I fixed it and now it only works on speeds 5 and it has no heat that comes out now and whenever you turn the little knob to change it from the vent to the floor or defrost it will not switch over to either one what do I need to do next

My car has 120305 miles.
My car has an automatic transmission.

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