suburban sf42 furnace.

bird238 · 05-15-2011, 04:49 PM

Hi, I sure hope someone can help me. We have a Suburban sf42 ducted furnace in our 2000 Winnebago motorhome. It has worked fine since we bought in 2005. Last Monday we were starting to get it ready for the season and the furnace quit. The fan was making a funny noise and when it shut down the fan ran for a few minutes and then it stopped. Since then, nothing. We replaced the thermostat, so now the front air conditioner works but still nothing from the furnace. I have looked online for a troubleshooting guide but can't find one, so I thought I would try here. My husband is ready to pull the furnace out but will gladly accept any suggestions or tips. Are we going to have to buy a whole new furnace?

Sammie · 05-15-2011, 06:13 PM

This is all I can find. Hope it helps.

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Sammie

DAN L · 05-15-2011, 11:53 PM

Quote:

Originally Posted by bird238

Hi, I sure hope someone can help me. We have a Suburban sf42 ducted furnace in our 2000 Winnebago motorhome. It has worked fine since we bought in 2005. Last Monday we were starting to get it ready for the season and the furnace quit. The fan was making a funny noise and when it shut down the fan ran for a few minutes and then it stopped. Since then, nothing. We replaced the thermostat, so now the front air conditioner works but still nothing from the furnace. I have looked online for a troubleshooting guide but can't find one, so I thought I would try here. My husband is ready to pull the furnace out but will gladly accept any suggestions or tips. Are we going to have to buy a whole new furnace?

imo you probably don't need a new furnace.
here are some resources:

Marksrv.com Suburban RV furnace parts

RV Furnace Troubles - Fixing RV Frunace Problems

http://bryantrv.com/docs2/docs/SFseriesservice.pdf

http://www.gmceast.com/technical/Nic...an_Furnace.pdf