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Go Back JeepForum.com > Models > Jeep Wrangler Forums > YJ Wrangler Technical Forum > Dash fuse blows when a/c or heat turned on

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Unread 06-27-2013, 01:53 PM   #16
idaholtby
Web Wheeler
 
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1991 YJ Wrangler 
 
Join Date: Apr 2008
Location: Meridian, Idaho
Posts: 2,554
O.K., being how this is an aftermarket add on, and no PDC relay for the A/C, then this is left up to you to find just where the aftermarket A/C relay is installed. If you can find it, then remove it and see if the issue persists. Best of luck as we are all flying blind on this aftermarket install. Of course you can always dissect the controls and see if there is any wire rubbing going on. But on a stock YJ, the A/C and Heat are separate with respect to your current issue except the defrost. If all avenues have been exhausted, then perhaps we can visit testing the load side of the blown fuse to ground while wiggle testing harnesses and switching controls in order to find the cause.

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