If the info screen says "Raising" that means that the compressor is trying to lift the suspension but can't for some reason, usually a leak somewhere in the front part of the system, the eventual message of "suspension will raise when cool" is an indicator that the compressor overheated trying to bring the front up - if this happens often it won't be good for the compressor. What are HR spacers? AS it seems adding those initiated the problem. Sometimes an airbag may be leak free when in access or normal mode but when raised may reveal a leak.