my standby generator is acting up

You should be able to get a high pressure regulator any place that propane appliances are sold.  Home Depot, if they carry propane stoves and such, should have 'em.  Our local SEARS outlet in Placerville does.  Most Propane dealers will too. 

BTW, just thinking....
Perhaps your 2nd stage regulator locked up.  Pressure regulators are designed to shut down, or greatly reduce propane flow if they sense a gas leak via the pressure differential between input and output.  Think of it like a shop vac where there's a ball that blocks the suction if you tip the vacuum cleaner on it's side.  In order to reset the ball on the vac, you need to turn off the vac, set it upright so the ball falls back down, then turn on the vac again.  Propane regulators are sorta like that; they need to be reset if they tripped.  Here is a youtube video on how to reset your low pressure regulator;



Perhaps you inadvertently tripped it, then reset it when you tried to run the generator after your tank was refilled.

BTW, just thinking....
Perhaps your 2nd stage regulator locked up.  Pressure regulators are designed to shut down, or greatly reduce propane flow if they sense a gas leak via the pressure differential between input and output.  Think of it like a shop vac where there's a ball that blocks the suction if you tip the vacuum cleaner on it's side.  In order to reset the ball on the vac, you need to turn off the vac, set it upright so the ball falls back down, then turn on the vac again. 

Perhaps you inadvertently tripped it, then reset it when you tried to run the generator after your tank was refilled.

I bet that's it. If someone (OK, I admit it, it was me) was fiddling with the shutoff valve at the high pressure regulator, and the heater was on at the time, it would probably sense a leak when the valve was turned back on. And they usually vent a little bit of gas when filling the tank, so maybe that reset it.

Thanks for all of the info, Jerry. I think we can all agree that Hank Hill has nothing on you...

You are welcome!

BTW, I used to take lawn mowers people would throw away because the carb's were all goobered up after sitting outside for years and convert them to propane.  Easy to do; just take a propane bottle and an old propane lantern or camp stove valve and run a line to the engine side of the carb.  I used little barbs like drip irrigation lines use or vacuum lines on a car.  I'd open the valve a bit, pull the starter rope and bam!  She be runnin'!  Adjust the propane feed for the right power/rpm on the mower and off you go.  A bottle would run a mower an hour or two at least. 

Once stuck out in the desert with a busted fuel pump on a 4x4, I took the same parts; lantern, hose and a propane can, and we made it 12 miles back to pavement.  Ha! 

You are welcome!

BTW, I used to take lawn mowers people would throw away because the carb's were all goobered up after sitting outside for years and convert them to propane.  Easy to do; just take a propane bottle and an old propane lantern or camp stove valve and run a line to the engine side of the carb.  I used little barbs like drip irrigation lines use or vacuum lines on a car.  I'd open the valve a bit, pull the starter rope and bam!  She be runnin'!  Adjust the propane feed for the right power/rpm on the mower and off you go.  A bottle would run a mower an hour or two at least. 

Once stuck out in the desert with a busted fuel pump on a 4x4, I took the same parts; lantern, hose and a propane can, and we made it 12 miles back to pavement.  Ha!

Wow your a real Mcgiver !   

Wow your a real Mcgiver !   

+1

With regards to the 12 v and 6v charging systems that is not entriely true.  If the system is charging within in its limits it should charge somewhere between 12.5-14 VDC (your model may varry), anything over 14 VDC I would suspect a bad regulator diode as it is now overcharging and allowing AC voltage into your battery causing it to go bad.  Again refer to the specifications for your model.  Same with ta 6 volt system.

One thing on a recent exercise I did at SLAC they had us use two grounding rods, at least 6ffet apart driven 8 feet in and  (I am trying to recall the actual wording), grounded to the generator and to each other.  Seemed weird to me, but I talked to our generator mechanics and they said it is a new thing, and it is common for commercial generators. Not sure if it would apply to household ones or not.