Question about 1994 GMC Safari

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94 gms safari van heater blower not working

I tried everything from the fuse box to the wires and still nothing what is happening

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  • windpath Feb 17, 2009

    So I have a 93 GMC 2500 van heater that just quit blowing. It ran on High but not on Low for the past few months.. then it worked sometimes.. now it doesn't blow at all. Thoughts?
    I thought it may just be the switches.. the fuses all look good.. I'm not too mechanically inclined but I can be if the fix cost is too high.
    d


  • scarrelldc May 11, 2010

    Hi,



    Did the heater blower just quit or did it cycle on and off for a while or did it not work on every setting (it worked on low but not on high). Have you removed the fan from its cannister?

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I had the same problem in my 1994 safari. I thought it mite have been the resistor form other peoples comments. I removed it and tested it. The resistor was fine. The heater fan relay was bad, but I was able to repair it myself. If you remove it and inspect it there should be two contacts that need to make a good connection in order for it to work properly. When the fan is on high there is a little electro magnet that pulls the contact up and engages the fan motor to full speed. When it is not on high the lower part of the contact rests on the lower half of the relay flap. if there is not a clean connection at this location you are not sending signal to the resistor which controls the other three fan speed settings. Inspect this connection and if possible clean the contacts with emery cloth and make sure that the contacts are making a good connection. This should do the trick to make the lower speeds work if the resistor is still good. If this is too much brain damage try replacing the relay first and see what happens, if you are still getting the same result then the resistor or the fan switch is bad.

Good Luck!

Posted on Mar 31, 2009

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It may be the relays. i had the same kind of prob with my 1990 gmc 2500. i whent to a junk yard i got relays from there . thay well cost around 3 or 4 bucks

Posted on Jan 03, 2010

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Probably your resistors.  You will need to get it serviced

Posted on Jan 30, 2009

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SOURCE: 94 gms safari van heater blower not working

This van has a resistor under hood for the blower motor and is the blower motor getting power to it

Posted on Jan 17, 2009

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Posted on Jan 02, 2017

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