Thanx for getting back to me. When I use the old Bauer filter cartridge I get a flashing red light, which states "cartridge used up, change". When I install the new cartridge I get a solid red light, which states "Cable - or contact fault". In both states the compressor motor will not start...though it did run for awhile with the red light flashing. Hope that helps.
Just to let you know, I'm heading out to British Columbia later today and email and internet will be spotty for me for the next week or so. As such I may not be able to respond to you often enough...so I'm quite if you take your time with this for sure.