How to fix air suspension not lowering.
Airmatic will not lower.

Hello! in this video I show you how to diagnose the compressor pressure relief valve in order to get your air suspension to bleed off the pressure so it can lower. What happens is when the valve block opens to bleed off the air the valve is supposed to also open, when it does not it ends up using air from the storage tank which then fills the struts and bags to max height which is not only dangerous but can cause failures of the bags due to blowouts.
The testing is simple you are checking for about 7-8 volts when pressing the lower switch , if you have voltage then the valve is bad, even if its clicking and making noise.
I have seen this a LOT with Arnott air compressors. I am not a fan of Arnott anymore, I used to be, but lately the quality has been terrible., like 50/50.
I hope this helps.
Lou Palomino