I believe one of the main problem is leak down when the O-rings are cold, so the compressor keeps running to compensate and burns itself out, struggling to operate in the cold. I purchased a rocker switch to cut power to the system while not in use, but I haven't installed it yet. The power wire is the red one going to the control module under the drivers seat, it would be an easy mod.Man, I hate reading of all of the people struggling with the suspension. I have a 4/120 on my truck and have the ASU replaced once now. Would have been like $2300, which is ridiculous and one of the reasons I bought the Maxxcare.
This year no problems but the winter was somewhat mild.
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