2002 Astro Heater Blower Resistor

2002 Astro Heater Blower Resistor

Posted in the Chevrolet Astro Forum

First Prev
of 5
Next Last
Ryan

Hamilton, Canada

#1 Mar 29, 2007
This morning my fan stopped working on all speeds except for high. Therefore I conclude that the high speed blower relay is okay but the heater blower resistor must be blown. Does anyone know where I can find this resistor on my van?
wresleu

United States

#2 Apr 4, 2007
Right on top of your heater core. It will have two 9/32 screws holding it in. It's sort of buried beneath the wiring harness that runs alont the firewall. Just to the right of your blower motor.
Michael

Eugene, OR

#3 Jun 4, 2007
2002 GMC Safari. Heat/AC blower does not run on high and the mode selection does not work (2 separate issues). After reading several forums I found the mode switch issue was caused by a break in a vaccuum line. I found the hard plastic line (1/8" Outside Diameter) that is broken. I will replace it tomorrow. To fix the blower it sounds like I need to replace the high-speed blower relay? Can someone tell me where this relay is?
Peter the greek

AOL

#4 Jul 25, 2007
The Resistor & relay is all one part....
find it @ the passenger side behind wiper fluid water tank.It's to the right of your heater core and blower motor.It has two 9/32 screws holding it in. Sometimes your fan speeds will not work or blower will stay on with selector controls off or engine off.
......The resistor is the culprit......
Step(1)remove two black plastic grommets by pulling up center of grommets("NO" need to disconnect any hoses on the two tanks)Step(2)lift tanks straight up watch return hose @ radiator and AC line.Step(3)remove blue plastic from center of white plug and unplug white plug.Now remove two 9/32 screws and unplug wire at blower motor.BUY GM DELCO PART

Step two
George

Kingston, GA

#5 Aug 16, 2007
I have a 2002 astro the resister relay that I bought from Chevrolet is different from the one I took out I will have to make some changes to the hole in the duct where it goes. The Chevy parts guy said it was a desing change. Does anyone know if that is true?
George D

Kelleys Island, OH

#6 Aug 19, 2007
Yes, it is a design change, George. I had to do the same thing on my 98 Astro. I just used a dremel tool to modify the plastic opening. The hard part is that you can't see it, you have to work by feel. I just kept trying the new one for fit and making adjustments to the hole. Good luck!!
juliana

Canada

#7 Sep 1, 2007
where would I find the blower resistor on a 98 gmc 1/2 ton. The blower works on "high" and "Off". I checked the selector switch and it is ok. Jumped at the conection terminal and still only get high. Is the resistor in the relay or separate?
Thank
J
EdCNY

New City, NY

#8 Dec 10, 2007
A little help needed: my friend has a '98 Astro van and his HIGH fan setting doesn't work. Seems odd since LOW setting(s) would need resistors which could fail. Any idea of the cause/solution? We have no schematics. Might the dashboard board switch itself be bad? Is there a separate relay, or motor wire/winding?
Thanks in advance.
George D wrote:
Yes, it is a design change, George. I had to do the same thing on my 98 Astro. I just used a dremel tool to modify the plastic opening. The hard part is that you can't see it, you have to work by feel. I just kept trying the new one for fit and making adjustments to the hole. Good luck!!
solomon abercrombie

Pensacola, FL

#9 Apr 22, 2008
I have a 1987 safaria gmc van, When I switch on the fan bottom, the high speed will not increase, but when I switch to low, it works

Can someone help, its getting hot, and know air from the blower is working.

solomon
Richard S

Huntington Beach, CA

#10 Jun 16, 2008
Ok, I have a 2000 Astro with the same problem. I replaced the blower motor resistor as everyone talks about but it only last a few months. I'm going on my 4th blowe moter resistor. I also replaced it with the new one that needed me to trim the space to fit the new resistor.

Is anyone having the same problem over and over too? If so how can I fix it without having to replace the resistor every summer.
J Walt

Pittsburgh, PA

#11 Jun 24, 2008
Richard S wrote:
Ok, I have a 2000 Astro with the same problem. I replaced the blower motor resistor as everyone talks about but it only last a few months. I'm going on my 4th blowe moter resistor. I also replaced it with the new one that needed me to trim the space to fit the new resistor.
Is anyone having the same problem over and over too? If so how can I fix it without having to replace the resistor every summer.
If you're replacing it that often, the motor is going bad and drawing too much current through the relay (or you have a short in the wiring harness - this is unlikely, though, or the relay wouldn't last even a day of usage.)
Jeff

Battle Creek, MI

#12 Nov 25, 2008
I have a 2002 GMC Safari with a heater problem. Most of the time it works great but now and then it will not come on at all. You can feel heat in the vents but the blower dose not work. When this first started if it was not working and you would hit a bump in the road just right it would kick on. Anyone point me in the right direction?
Duane

Troy, MI

#13 Nov 27, 2008
Jeff wrote:
I have a 2002 GMC Safari with a heater problem. Most of the time it works great but now and then it will not come on at all. You can feel heat in the vents but the blower dose not work. When this first started if it was not working and you would hit a bump in the road just right it would kick on. Anyone point me in the right direction?
You need to replace the blower motor resister , sometimes called the heater resister or a/c resister. It is easy to replace and the part is generally about $50-$60. Read more of these forums and you will find more info on exactly where it is located and how to replace it. I did mine my self and it took only about 30 minutes , and I am no mechanic.
Bernie Palo

Sterling Heights, MI

#14 Dec 11, 2008
FYI... Just repaired the "no high speed fan" on a '05 Astro Van. Didn't need the resistor, but had to replace the Connector because of a noticeable burnt pin on the old connector. Only a matter of cutting the old one and splicing in a new one. Just solder and shrink warp the new one in. Here is the 6 pin Delco replacement number PT1134. Took about 1/2 hour. Good luck.
Raffi B

Thornhill, Canada

#15 Dec 29, 2008
I have a 1999 Chevy astro (cargo). I had the same issue with some or the guys above. My high fan stopped working. I tried changing the selector switch, that didn’t work. So I did just as the way Peter the Greek explained above and changed the resistor by the blower motor and it worked.

I went to the GM Dealer and bought an AC Delco part (part Number 15-80550). The cost was $52 Canadian.

The part was different then the one I pulled out. You do have to do so work by using a DRUMALL and open up the hole a bit. That was the hard part, because you can’t see. Ok sorry you can see a bit. The whole job took 1 hour. It wasn’t that bad.

I just wanted to thank you guys for the tips and Peter the Greek for the step by step directions. The job is done and I have my high fan back.

Next adventure is fixing my A/C. I think my compressor is gone. Any tips on how to check this thing.

Raffi B
Toronto, Canada
Michael

Madison, WI

#16 Jan 8, 2009
Pete, do you know when the design change was as I have an 2003 Astro with same problem.
Peter the greek wrote:
The Resistor & relay is all one part....
find it @ the passenger side behind wiper fluid water tank.It's to the right of your heater core and blower motor.It has two 9/32 screws holding it in. Sometimes your fan speeds will not work or blower will stay on with selector controls off or engine off.
......The resistor is the culprit......
Step(1)remove two black plastic grommets by pulling up center of grommets("NO" need to disconnect any hoses on the two tanks)Step(2)lift tanks straight up watch return hose @ radiator and AC line.Step(3)remove blue plastic from center of white plug and unplug white plug.Now remove two 9/32 screws and unplug wire at blower motor.BUY GM DELCO PART
Step two
Michael

Madison, WI

#17 Jan 8, 2009
Does anyone know when the resister relay "design change" took place as my Astro is a 2003?

"resister relay that I bought from Chevrolet is different from the one I took out I will have to make some changes to the hole in the duct where it goes. The Chevy parts guy said it was a desing change."
wunder

Madison, WI

#18 Jan 13, 2009
Hello all, I have some trouble with my heater in my 97 astro van, I fixed the selection part of my problem by replacing my vac lines. My fan also works on all speeds excect for high speed , I replaced the relay that u all talk about on the pas side on the fire wal,l I replaced this two times, thinking maybey I got a defective part but neaither one worked I modifed the hole just like I was told to do and yet this has not helped my problem, I lost on this one. Any help would be great. I also get cold air out of the rear heater.?

Thanks Wunder
disgusted in Texas

Arlington, TX

#19 Jan 13, 2009
These Astro van are the worst POS that GM could have created. If it is not one thing, it is another. I am sick of this piece of crap, yet everyone talks about the Chrysler town&country being problems, but i see less problems with those than the CRAPSTROS !!! SICK SICK AND TIrED OF THIS PIECE OF JUNK I TELL YOU
Richard

United States

#20 Feb 11, 2009
I'm having the exact problem. I'm on my third blower motor resistor. I kep replacing it, it works for a while. Then the same problems comes up. Anyone have and suggestions on how to fix it?
wunder wrote:
Hello all, I have some trouble with my heater in my 97 astro van, I fixed the selection part of my problem by replacing my vac lines. My fan also works on all speeds excect for high speed , I replaced the relay that u all talk about on the pas side on the fire wal,l I replaced this two times, thinking maybey I got a defective part but neaither one worked I modifed the hole just like I was told to do and yet this has not helped my problem, I lost on this one. Any help would be great. I also get cold air out of the rear heater.?
Thanks Wunder

Tell me when this thread is updated:

Subscribe Now Add to my Tracker
First Prev
of 5
Next Last

Add your comments below

Characters left: 4000

Please note by submitting this form you acknowledge that you have read the Terms of Service and the comment you are posting is in compliance with such terms. Be polite. Inappropriate posts may be removed by the moderator. Send us your feedback.

Chevrolet Astro Discussions

Title Updated Last By Comments
Astro- Misfiring on Multiple Cylinders, Various... (Feb '07) 18 hr Andrew Kennedy 95
91 Astro Van - Runs badly. Sometimes (Feb '08) 20 hr Dale 3
2002 Chevy Astro Starting problems (May '10) Wed CYP 37
Astro won't start or very hard to start when da... (Aug '07) Dec 5 BREETX210 129
2003 Astro slight miss and flashing Service Eng... (Jan '12) Dec 2 Tor 12
95 Astro loses power when accelerating hard. Bo... (Dec '07) Dec 1 Brandy 20
Chevy Astro AC/Heater Blower Vent control not w... (Oct '06) Nov 30 pat 220
More from around the web