Question about 1993 Nissan Sentra 4 Door

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93 Nissan sentra air conditioning

Alright, when I bought the car my mech told me that the only default with the car is that the a/c is stuck with only one of the fan speeds that work, but that I can always turn the fan off if I needed to. about a year ago my a/c went out as well as my automated seat belts fuse obviously. when the fuse was replaced my a/c kicked in just fine but went out weeks later, I rechecked the fuse, still good; had the compressor checked out today, works fine; recharged the freon, still nothing; and just earlier today replaced the entire blower motor, still nothing. Now when I start the car and turn the a/c switch on you can hear the a/c try to kick on but the fan isn't kicking in. I live in the heart of florida and the heat is killing me this year for some reason pleassseee help as soon as you can.

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  • rzr_man Jan 16, 2009

    I have the exact same problem, even with the seat belts. Does anyone know what the fix really is???

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Sounds like your ballast resistor is out for the blower motor. You said that you only had 1 speed or off when you turned the fan on. The fan's speeds are made possible by a separate resistor installed on the heater box. The dash switch itself will only work at one speed when the resistor isn't functioning; and eventually the switch will burn out too. The resistor is much easier to change out than the blower motor was, and cheaper too. You can find it on the heater core/blower box by the passenger side footwell You can order the resistor for around $25.00 from a Nissan dealer, the switch itself costs about the same, verses around $90 for the blower motor.. It took me all of 20 minutes to change them out in my Nissan. I really hope you kept your receipt for the new blower motor, because it was probably fine. I'm not sure what you mean about the automated seat belt fuse. I know there is a sensor in each seat that causes the seatbelt indicator light to flash until you plug the belt in. There are 2 wiring harnesses, one for the seat that can tell when weight is on the seat, the other one shuts off the dash indicator when you plug the belt clasp in. Good luck...

Posted on Jul 06, 2008

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