Coast Resorts Open Roads Forum: Class C Motorhomes: Furnace black smoke


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Holiday27

Gresham, OR.

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Posted: 10/02/22 02:16pm

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Hi All,
Hoping I can get some furnace help. With searching I had no luck.... When I run my furnace I get stinky dark smoke. Here's the weird part. I pulled it out and bought the proper connectors and hooked it up to my car and a propane tank and it ran fine. My fridge and stove work well. Do I have an issue with my propane regulator on my RV though? I don't understand why the furnace runs dirty in the RV.

Anyone have any ideas? Thank you!!

2002 27PBS Holiday Rambler (Aluminum sided/roof) Love it!

Previous RV's
'94 Jamboree 22ft. (This beast had a 460 with tons of power)
'95 VW Eurovan camper (5 cyl. dog) Pulled a 3 rail fine though.
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Borrowed folks '84 VW Westfalia (water cooled)

bgum

South Louisiana

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Posted: 10/02/22 02:37pm

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Would this be caused by air fuel mixture?

midnightsadie

ohio

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Posted: 10/02/22 04:17pm

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could be a blocked fresh air intake. clean the intake and exhaust pipes. just a though.

Pbutler97

Midwest

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Posted: 10/02/22 04:24pm

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I would check the regulator output for 11" WC.

Holiday27

Gresham, OR.

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Posted: 10/02/22 07:43pm

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bgum wrote:

Would this be caused by air fuel mixture?

Maybe, but it runs fine outside the RV.

Holiday27

Gresham, OR.

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Posted: 10/02/22 07:45pm

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midnightsadie wrote:

could be a blocked fresh air intake. clean the intake and exhaust pipes. just a though.

I've cleaned everything, intake and exhaust so I think I have that area covered. Thanks for the ideas though.

Holiday27

Gresham, OR.

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Posted: 10/02/22 07:46pm

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Pbutler97 wrote:

I would check the regulator output for 11" WC.

Can I check on my own or do I need to take it to a shop?
Thanks!

Pbutler97

Midwest

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Posted: 10/03/22 02:45am

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Holiday27 wrote:

Pbutler97 wrote:

I would check the regulator output for 11" WC.

Can I check on my own or do I need to take it to a shop?
Thanks!

Check it yourself.

Click

Click

bgum

South Louisiana

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Posted: 10/03/22 10:00am

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Please let us know the outcome. I am convinced it is air in-out-or both.

wolfe10

Florida

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Posted: 10/03/22 12:13pm

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OR a rusted/damaged burner or perhaps a mud dubber has set up housekeeping.

Either will disrupt the fuel/air mixture, same as improper propane pressure.

Brett Wolfe
Ex: 2003 Alpine 38'FDDS
Ex: 1997 Safari 35'
Ex: 1993 Foretravel U240

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