Which side has the 30# Red Top Regulator---drivers or passengers?
If it is on the side that has issues with propane (furnace) then the 30# Red Top Reg needs replaced
IF the auto change-over reg is on side that has issues with propane then you are either opening that cylinder valve to fast and tripping 'excess flow device' (close cylinder valve, wait 30 sec and then open it slowly)
OR
the pigtail on that cylinder has a faulty 'excess flow device' (replace pigtail hose)
Is it time for your medication or mine?
2007 DODGE 3500 QC SRW 5.9L CTD In-Bed 'quiet gen'
2007 HitchHiker II 32.5 UKTG 2000W Xantex Inverter
US NAVY------USS Decatur DDG31