I have a PT50, and although the manual says there is a 2 minute delay, it actually takes almost 2 1/2 minutes, but then it comes on just fine, every time. If you still don't have power after the time delay, then I suggest you call the toll free number for Progressive Industries in your manual. They are very helpful, and will take care of you quickly.
2003 Ford F-350 V-10 Crew Cab 4WD Long Bed
2004 Jayco Designer Medallion 29 RLTS 5th wheel
Bill, Gayle, and Mindi (dachshund)
Retired at last !
Nothing is foolproof to a sufficiently talented fool.