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Old 11-07-2019, 01:44 PM   #1
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Brand: Thor Motor Coach
Model: Thor Outlaw 38RE
State: West Virginia
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THOR #17154
Propane wonít flow

Iím sorry to be a newbie PITA! But Iím so non mechanically inclined itís not funny. And Iíve owned this thing for a week and ready to give up. Overnight we discovered multiple issues. Itís raining here and a wiper blade broke, so weíre going to be a while before we can move. So - we may spend another night in Walmart.
That said, my propane stopped flowing. So I have no heat. We did as advised and turned off the propane before we left our last stop. When we got here last night, I turned it back on, but nothing flowed. Nothing to the furnace, stove or water heater. So Iím thinking itís the regulator at the tank? My mechanical abilities stop at ďtapping the damned thingĒ to see if maybe something inside was stuck.

Someone - please tell me itís a simple fix...

Thank you
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Old 11-07-2019, 01:55 PM   #2
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1 - Verify there is propane in the tank by the local gauge
2 - Verify the valve is all the way open by turning counter-clockwise
3 - Turn on a stove top burner and put a flame next to the burner - it should flicker due to air/gas flow even if it doesn't light due to air in the line.

If no flow per step 3 above you probably do have a regulator problem. If you have flow, let it run until the flame lights the burner and continue to run it to get air out of the system before trying the heater.
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Old 11-07-2019, 02:05 PM   #3
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"16" has given you some darn good advice...
I'll just add that you're not a PITA, and good luck!
Everybody has to start somewhere...
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Old 11-07-2019, 03:07 PM   #4
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THOR #17154
We have a full tank. Filled it before we left and the gauge shows full.
When we turn on the main valve we can hear pressure open up. So it appears that the main valve / knob is working.
When we turn on the stove jets and click piezo, every once in a while a small 1/4” flame will light then quickly go out.
When I turn on the furnace and it calls for heat, the fan will blow, and I think I can hear clicking when it tries to ignite the propane.
The water heater “pilot out” light illuminates.

I’m confident there’s either a blockage at the main or the regulator is stuck closed.

Any miracle cures?
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Old 11-07-2019, 03:25 PM   #5
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THOR #16118
For our coach, it takes 15-20 seconds of flow at the stove for it to light... and another 15 or so seconds to get gas back to the water heater. It is low pressure, so it takes awhile to clear the air out of the pipes.

If required, changing the regulator should not be difficult. Good luck!
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Old 11-07-2019, 03:32 PM   #6
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THOR #17154
While weíre waiting for wiper blades, we tried the stove again.
We turned on the propane at the tank.
Heard the pressure.
Turned on the burner and hit the lighter.
The burner lit and burned (blue) for a little, pulsed a little, then slowly decreased till itís sitting there at less than 1/4Ē flame.
Now weíve got 1/3Ē yellow flame
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Old 11-07-2019, 03:42 PM   #7
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Get one of these in your walmart.
https://www.walmart.com/ip/Bic-Multi...count/41586711

It takes a long time (minutes) to clear the air out of the propane line.
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Old 11-07-2019, 03:56 PM   #8
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Quote:
Originally Posted by abjbrtd View Post
It takes a long time (minutes) to clear the air out of the propane line.
I agree... and since we've all heard the horror stories about filling rooms with propane: it takes a lot of guts, and a true leap of Faith: to turn the knob... and wait to light it!
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Old 11-08-2019, 02:10 AM   #9
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It sounds like air in the line. I would run a stove top burner, for awhile, while trying to light it every few seconds. My guess is after about 15 or twenty seconds of this, the burner will stay on and your air in the line problem will be solved.
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Old 11-08-2019, 02:52 AM   #10
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Originally Posted by Laco View Post
It sounds like air in the line. I would run a stove top burner, for awhile, while trying to light it every few seconds. My guess is after about 15 or twenty seconds of this, the burner will stay on and your air in the line problem will be solved.
Nope...
We ran the burner for at least 20-30 minutes. Also, no gas to the water heater or furnaces. Iím going to have to replace the regulator when we get home tomorrow. Tonight, at 38 degrees, we freeze...
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Old 11-08-2019, 03:06 AM   #11
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Quote:
Originally Posted by WearyTraveler View Post
Nope...
We ran the burner for at least 20-30 minutes. Also, no gas to the water heater or furnaces. I’m going to have to replace the regulator when we get home tomorrow. Tonight, at 38 degrees, we freeze...
You need a backup plan. Carry a gas buddy and a 1g propane tank for emergencies. It doesn't take up a lot of room and will warm the space enough for an overnight stay.

Similar situation: traveling from NC to FL to see parents. Got tired, pulled into a flying J to spend the night. Fridge gas light flashing - nothing at the range top. Hook a 20lb to an extend-a-stay and all is good. Try to fill the tank. She accepts a gallon. Been sitting in FL for two weeks. Fridge and water heater have been exclusively on gas. Go figure. I'm still scratching my head. The RV is level in both scenarios...
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Old 11-08-2019, 03:20 AM   #12
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Based on your troubleshooting it sounds like you have moisture in the regulator. Close the valve and open slowly, then try. Iíve had that happen with a grill in cold weather, a couple of tryís closing then opening the valve may fix it. Just open slowly.
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Old 11-08-2019, 03:27 AM   #13
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Originally Posted by WearyTraveler View Post
Nope...
We ran the burner for at least 20-30 minutes. Also, no gas to the water heater or furnaces. Iím going to have to replace the regulator when we get home tomorrow. Tonight, at 38 degrees, we freeze...
Do you have a small electric heater and enough gas to run the generator?
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Old 11-08-2019, 12:25 PM   #14
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THOR #15553
Quote:
Originally Posted by WearyTraveler View Post
We have a full tank. Filled it before we left and the gauge shows full.
When we turn on the main valve we can hear pressure open up. So it appears that the main valve / knob is working.
When we turn on the stove jets and click piezo, every once in a while a small 1/4” flame will light then quickly go out.
When I turn on the furnace and it calls for heat, the fan will blow, and I think I can hear clicking when it tries to ignite the propane.
The water heater “pilot out” light illuminates.

I’m confident there’s either a blockage at the main or the regulator is stuck closed.

Any miracle cures?
Turn off tank gas valve. Wait for 1 min and reopen Slowly as stated above. Some have a built in safety valve that will close if gas flows too fast. Don't know if yours has this or not. Why did you turn off the gas at your last stop? No reason to do that that I have heard. Many people travel with the fridge on gas.
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Old 11-08-2019, 01:39 PM   #15
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Quote:
Originally Posted by cavie View Post
Turn off tank gas valve. Wait for 1 min and reopen Slowly as stated above. Some have a built in safety valve that will close if gas flows too fast.
This
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Old 11-09-2019, 06:57 PM   #16
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THOR #17154
All thank you for the responses!

We eventually made it to an RV repair shop. I talked to a mechanic there and discussed the symptoms. He said that it sounded like a failed regulator and that he sees ďa lotĒ of failed ones. But he didnít have the needed model in inventory so he couldnít fix if for us.

So Iím home, looking for a replacement online. Now more confusion...
  • He said that it was a single stage regulator.
  • The Thor manual says it uses 2 stage regulators

Who is right? I havenít looked at the current one closely. Iíll get a chance to look again tomorrow and maybe determine single vs 2 stage.

With the little reading Iíve done, 2 stage is safer / better. So if the bad one is a single stage, can I safely replace it with a dual?
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Old 11-10-2019, 02:40 AM   #17
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Took the regulator off. Itís a 2 stage, not a single stage that the mech told me. Geeze- youíd think an RV tech would know that stuff!

I ordered 2 from amazon just now.
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