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Old 06-22-2015, 12:23 PM   #1
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Propane tank full - no gas!

I got my Prism back from the dealer who addressed a few issues in December and found they had left the furnace on until I ran out of propane. I filled the tank and didn't give it another thought. Then I tried to use the hot water hearer last week - nothing. I tried the stove - no gas. I tried the generator - nothing! I checked the valve - wide open. The tank is full . What could be keeping gas from getting to the appliances?
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Old 06-22-2015, 12:29 PM   #2
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There is a free flow safety valve in the tanks. If the system is empty and you turn on the gas, it will leave the tank fast enough to trick the safety valve into thinking there is a free flow. Shut off the valve, disconnect the line, Reconnect the line. The crack the valve ever so slightly and let it stay that way for a minute or two. This will fill the lines. Then open the valve slowly and try stove again.
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Old 06-22-2015, 12:31 PM   #3
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Have you tried shutting your tank off the opening it very slowly? I believe propane tanks have a check valve that shuts off the gas if they are opened to quickly, I've had that happen to me before.
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Old 06-22-2015, 07:16 PM   #4
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Possible bad propane regulator at the tanks. I had these things fail and restrict the gas flow to almost nothing. Even ones that were fairly new. You may new to replace it with a new one. Also check that your propane tank hook up fittings are screwed on all the way and tight. There is a small ball check valve in the propane line fittings that will not allow flow from the tank if they are loose. I've even had these check valves get stuck and had to replace the hook up lines between the tanks and regulator.
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Old 06-22-2015, 07:32 PM   #5
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Originally Posted by OneRoomShed Trailer Tech View Post
Possible bad propane regulator at the tanks. I had these things fail and restrict the gas flow to almost nothing. Even ones that were fairly new. You may new to replace it with a new one. Also check that your propane tank hook up fittings are screwed on all the way and tight. There is a small ball check valve in the propane line fittings that will not allow flow from the tank if they are loose. I've even had these check valves get stuck and had to replace the hook up lines between the tanks and regulator.
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Old 06-22-2015, 08:39 PM   #6
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I would also check the connection on to the tank . With the new valves if the connection is not tight it will no activate the valve and no gas will come out .
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Old 06-23-2015, 12:40 PM   #7
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I would also reset your CO2 detector there is a safety switch that prevents gas flowing if it is not working. I had a no gas problem and that fixed it
good luck
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Old 06-23-2015, 12:43 PM   #8
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Thanks; it's a built in tank. I'll try the slow opening first.
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Old 06-23-2015, 01:02 PM   #9
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I got my Prism back from the dealer who addressed a few issues in December and found they had left the furnace on until I ran out of propane. I filled the tank and didn't give it another thought. Then I tried to use the hot water hearer last week - nothing. I tried the stove - no gas. I tried the generator - nothing! I checked the valve - wide open. The tank is full . What could be keeping gas from getting to the appliances?
Are you sure the tank is full? I put a full tank on and a week later it was empty. Went looking for a leak and found a stove burner just barely turned on. Leak was so slow it didn't trip the alarm. Had the ceiling fan on so that helped spread out the gas fumes. Checked the alarm and it did work..

I now have this on all my tanks.

Propane Level Gauge

A quick glance and I know what I have in the tank.

Jim
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Old 06-23-2015, 01:56 PM   #10
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ALSO - Often, you may need to let the gas run for a moment to purge the air out of the lines.

I use one of those long butane lighters.

Turn one of the stove burners on, light the butane lighter and hold the flame near the stove burner so you can see the air flow from the stove burner blowing against the flame of the lighter.

Give it about 45 seconds and it should light.
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