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80 931 A/C Blower Troubleshooting

 
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GuyS  



Joined: 06 Sep 2019
Posts: 4
Location: Richboro, PA
PostPosted: Mon Oct 09, 2023 7:29 am    Post subject: 80 931 A/C Blower Troubleshooting Reply with quote
1980 931 been sitting since 1998. Now fully up and running very well. Been enjoying the heck out of this car for the past year.

I am now trying to sort the AC. I have no ac blower whatsoever. Not at any speed. I have two ac relays but unknown if any good. I checked for power at the relay. All pins show voltage except the small pin. This does not change regardless of switch position.

I can jump the pressure switch and engage the compressor

I suspect the actual ac blower but haven't tested that as of yet.

I have searched high and low but can't find a definitive trouble shooting checklist on this. I have both Haynes and WSM and they provide little guidance. Any and all help appreciated. Thanks
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Guy

1980 924
1979 928
1987 924S
2008 997
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