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Old 10-05-2012, 08:20 PM   #15
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Full of debris could be a problem.

Don't be in a hurry to get it going, unless you have lost your sense of smell.
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Old 10-05-2012, 08:43 PM   #16
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I am camping so furnace will have to wait.
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Old 10-05-2012, 09:06 PM   #17
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Full of debris could be a problem.

Don't be in a hurry to get it going, unless you have lost your sense of smell.
If he starts it now, he could have roast vermin for dinner. Yummy
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Old 10-06-2012, 08:22 AM   #18
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I need a rebuild kit for it now, sources?
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Old 10-06-2012, 09:25 AM   #19
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Mud Daubers and varmints in the furnace wouldn't cause the stove flame to get lower when you try to start the furnace. Classic low pressure/volume problem. I'm still thinking you have a bad LP regulator on top of any debris in the furnace.
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Old 10-06-2012, 10:09 AM   #20
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I was about to give up on the Suburban furnace in my 79 Safari this past week. I did something that fixed it, although I still don't know why it worked. I started the furnace (via the thermostat) without the control board plugged in, then I plugged the control board back in while the furnace was running. And voila, gas. Maybe this caused the control board to reset or something. Now it works everytime.
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Old 10-06-2012, 10:13 AM   #21
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I should also clarify that the valve was not opening prior to this little stunt. The valve gets the signal to open from the control board, and you can definitely hear it opening now.
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Old 10-06-2012, 03:13 PM   #22
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Your choices may be limited to one

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I need a rebuild kit for it now, sources?
The last time I looked, Inland Andy was the only vendor selling parts for the old Suburban furnaces, and I don't recall him offering a rebuild kit.

What parts are you hoping to find in a rebuild kit?

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Old 10-06-2012, 10:24 PM   #23
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I need the gaskets.
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Old 10-07-2012, 08:09 AM   #24
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You might try www.marksrv.com
They have alot of old suburban parts
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Old 10-14-2012, 10:04 AM   #25
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Ok well, I ordered a new gas regulator and installed it and turned on both bottles and turned on the stove and NOTHING. I removed the regulator and unhooked it from the trailer gas system and opened the tanks and gas flowed out like mad. So the problem is not the new regulator. I expect there is crap in the lines. I am going to blow air through them in the opposite direction and see if I can find the stoppage. So maybe my old regulator was fine. I just hope that the crud has not stopped all my gas orfices up.

On another note, the Marshall model 254 regulator does not seem to be available. I think they are having some issues and I don't know if they will recover or not.

LP Gas Automatic Changeover Valves on Sale - PPL Motor Homes

Perry
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Old 10-14-2012, 10:35 AM   #26
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Well, that sucks.
I apologize for my incorrect idea. However, it is not a bad thing to have an extra regulator. One of mine quit working while on a trip. That was a inconvience. It was sandwiches, cold showers, and microwave TV dinners, for a couple days until I could get an replacement.

Ken
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Old 10-14-2012, 11:53 AM   #27
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Ok everything is working now. The problem was the rubber flex hose leading to the regulator on the trailer side. It had swollen inside as a result of oil coming from the tanks. I cleaned it out with a gun cleaning brush and some WD40. I think it will be fine for a while. I do need to find a replacement hose or just replace it with some stainless steel or copper pipe for that matter. The stove took a while to light since all the air had to be purged out. Once it did, the burners were twice as high as they were and when I turned on the furnance they did not change at all. The furnance lit the first try. So as usual, Murphy was working this issue full time. A seeminly simple regulator replacement ended up taking 4 times longer than it should have.

Perry
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Old 10-14-2012, 01:40 PM   #28
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... A seemingly simple regulator replacement ended up taking 4 times longer than it should have.
If it makes you feel any better, my string-trimmer developed a leak in one of the fuel lines which knocked it out of operation. It appears you & I wasted about the same amount of time implementing our respective fixes.

After installing a plumbing rebuild kit from Lowes, the device would only run if the choke was constantly played with. Obviously, dirt had made its way to the tiny carb. My time was wasted by trying to clean the carb in place instead of removing it to start with.

But, like you I prevailed even though it took way too long.

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