On Sunday, March 3, 2013 10:18:02 PM UTC-6, wrote:
Any suggestions as to cause and fix? Bill

Sounds like you have a leak in the TE line and they were both actually sensing static pressure. If hooked up backwards, they will operate backwards. If you had a leak between the capacity and the vario and a good connection between the vario and the TE probe, the vario would go full up and stay there until you land.

Could be a missed connection in the plane, or maybe your probe didn't seal up in the fitting in the vertical tail

Steve Leonard