[TowerTalk] VFD P-3000-D Power Meter Problem

[Bill Gillenwater]

I have an RF Applications VFD (P-3000-D) with the VSWR option. It has worked fine for many years. Just recently it is showing "false" high SWR readings and tripping the VSWR relay to the amp. I have relocated the wiring and head unit but on occasion I get the "false" high SWR reading and it shuts everything down. Anyone with this unit have any ideas? 

tnx 73 Bill K3SV