I get Air Suspension Fault notifications. My diagnostic shows the following three codes:
C2303 Reservoir plausibility error
C2302 Leveling plausibility error
C1424 Left Front damper circuit open

Has anyone a trouble shooting process that I can use to sort this out?

 

the 2302 and 2303 are both indicative of either a leak or a faulty compressor typically.
If I had to make a SWAG, I'd say that you had a failure of some sort in the left front strut that caused the compressor to run continuously and burn up.

Take the compressor relay out and leave the vehicle to sit on a level surface overnight. That'll show you if you have a leaking strut. The compressor relay is in the fuse box under the hood, far right relay in the row of four if you're looking at it from the front.