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Old 01-25-2022, 05:02 PM   #1
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Low Propane Pressure--Regulator??

I have a 2022 Sundowner Trailblazer travel trailer. Everything worked perfectly prior to storage. I pulled it out tonight to get ready for a trip to Florida this weekend. In checking all the systems, I seem to have very low propane pressure. The stove lights, but diminishes to almost no flame. Lighting the second burner makes it go to almost no flame immediately. Propane tanks are half full and when disconnected from the trailer, runs a garage heater perfectly. I performed the regulator reset procedure, shutting the valve , turning all appliances off, slowly turning on the propane valve back on. No difference in the flame. I'm at a loss unless it's a faulty regulator. Any suggestions?

Thanks in advance. Greg
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Old 01-25-2022, 05:15 PM   #2
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My first thought would be the 2 stage regulator, either malfunction or freezing because of moisture in the tank. If the issue is only with the stove, it probably has a secondary regulator that is limited to 10in when propane is flowing.

You need to buy or make a monometer so that you can see what's really going on.
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Old 01-25-2022, 06:10 PM   #3
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Quote:
Originally Posted by ernieh View Post
My first thought would be the 2 stage regulator, either malfunction or freezing because of moisture in the tank. If the issue is only with the stove, it probably has a secondary regulator that is limited to 10in when propane is flowing.

You need to buy or make a monometer so that you can see what's really going on.
Will do. Thanks for the reply and info. GH
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Old 01-25-2022, 07:01 PM   #4
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Close the tank valve and wait a few minutes. Now S-L-O-W-L-Y open the valve so that the excess flow device is not tripped.

Ken
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Old 01-25-2022, 07:06 PM   #5
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Close the tank valve and wait a few minutes. Now S-L-O-W-L-Y open the valve so that the excess flow device is not tripped.

Ken
YEP^^^^^

Inside the pigtails that connect cylinder to regulator are Excess Flow Devices.....trip when downstream doesn't equal upstream flow
Opening Cylinder valve too quickly doesn't allow equalization to occur...it trips

Close valve...wait 30 seconds....then SLOWLY open the valve
Light off stove top burners and check flames
*may take several attempts with each appliance...water heater, fridge, furnace ----pressure/flow has to be established at each after propane system has been out of service for a while
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Old 01-25-2022, 07:24 PM   #6
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Excess flow prevention valves are in the tanks themselves.
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Old 01-25-2022, 07:36 PM   #7
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Excess flow prevention valves are in the tanks themselves.
Not with portable cylinders on trailers
They are inside the ACME Nut on the pigtail

The cylinder has an OPD...Overfill Protection Device
OPD is service valve, relief valve, fixed level bleeder valve, float shutoff and a spring loaded check valve which prevents ALL flow if ACME Nut is not screwed on.

Excess Flow is part of the ACME Nut

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Old 01-26-2022, 10:01 AM   #8
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Did you get good flow yet?

If resetting Excess Flow Device (close valve/slowly opening) isn't fixing it then your Main LP Reg could be faulty
*even a 2022 can fail

Stove top not lighting off properly.....could be due to Main LP System being LOW (Main Reg issue)
Does Furnace fire up and run??
Does Fridge fire up and run?
Water Heater?

If they do fire up ---leave running and try Stove Top burners again
Stove flames still low....then under stove top is another LP Reg just for stove...set for 10"WC when Main System is holding 11"WC

Post back....let us know
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Old 01-26-2022, 12:18 PM   #9
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Did you get good flow yet?

If resetting Excess Flow Device (close valve/slowly opening) isn't fixing it then your Main LP Reg could be faulty
*even a 2022 can fail

Stove top not lighting off properly.....could be due to Main LP System being LOW (Main Reg issue)
Does Furnace fire up and run??
Does Fridge fire up and run?
Water Heater?

If they do fire up ---leave running and try Stove Top burners again
Stove flames still low....then under stove top is another LP Reg just for stove...set for 10"WC when Main System is holding 11"WC

Post back....let us know
I tried the excess flow procedure a number of times, Left it off for 5 min, then 10 min, then overnight. Opened the valve VERY slowly. Still very little flow. Furnace doesn't light, fridge is 12 volt only, water heater lights but barely. I ordered a new regulator which is supposed to come tomorrow. I may get the tanks topped off also, just in case, but they are not empty. I appreciate all the comments!
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Old 01-26-2022, 12:28 PM   #10
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Furnace and water heater having issues........Main LP Reg problem

There have been reports of bad regs on NEW rigs.

Is yours a Fairview Reg?
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Old 01-26-2022, 04:07 PM   #11
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Furnace and water heater having issues........Main LP Reg problem

There have been reports of bad regs on NEW rigs.

Is yours a Fairview Reg?
No, Its a Camco.
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Old 01-26-2022, 04:13 PM   #12
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Update: Topped off the propane tanks. They didn't even charge me because it took so little gas. Performed the Excess flow valve procedure again. No change. Took the stove top out to ensure there wasn't a kink in the line, and it's all copper piping. no issues. It has to be the regulator or the Acme valve. Regulator shows up tomorrow and if that doesn't work, I will replace the Acme valve. I'm pretty confident its the regulator, I mean these systems aren't exactly high tech... Thank you for all the replies. I will update tomorrow. Greg
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Old 01-26-2022, 08:42 PM   #13
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You only have ONE propane cylinder ---correct?

The Pigtail hoses have been know to fail also

Camco regs are NOT high quality by any means.

Hopefully the new reg resolves your flow issues
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Old 01-27-2022, 05:00 AM   #14
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You only have ONE propane cylinder ---correct?

The Pigtail hoses have been know to fail also

Camco regs are NOT high quality by any means.

Hopefully the new reg resolves your flow issues
The trailer came with one bottle, but I added a second. I kept the single regulator in lieu of a dual changeover as I don't like waking up in the middle of the night with NO propane.
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