Bill56 said:

Update, started her up and remembered to close the door this time, and she is pumped up and back to normal ride height, and staying up, now totally confused?:doh:

Click to expand...

Dont be.......it's happening.......time to replace the bags i think......the soapy water kind of thing is not always working, the bags sometimes are just sealing themselves........but if u still dont know what was with the warning light then it could be some valve issue too

Bill56 said:

Update, started her up and remembered to close the door this time, and she is pumped up and back to normal ride height, and staying up, now totally confused?:doh:

Click to expand...

No need to be confused, your compressor is working so that's good. Your air springs are leaking so that's bad.

Buy two new air springs here:

RKB101200 Rear Air Spring - including 2x clips (WEB EXCLUSIVE SPECIAL OFFER)

To do the job takes about 15mins per side and does not require any special tools. Do a search on here for replacing rear suspension air bags.