Jump to content

Furnace Problems


Jim Corey

Recommended Posts

I have an Atwood 8500 furnace in our 2006 Monaco Monarch 30PDD. It started cutting out while running. I cleaned the terminals on the board with DeOxit spray, and that seemed to work. BUT (now the weird part) warm air only blows out one register (in the kitchen). All the other registers the air blows out cold (but in the normal volume.) And worse, there are definitely fumes coming out with the heat. Eye watering fumes. The CO detector didn't alarm, although it did sound off with the test button.

 

I don't know how the furnace is connected to the ducting. I'd like an idea before I remove the unit. And I can't for the life of me figure how one vent blows warm, and 4 others blow cold at the same time.

Link to comment
Share on other sites

I am not sure just what you mean by "cutting out while running" but I suspect that you mean it is turning off at times. Based upon your description of the heat distribution and this comment, my guess is that something is blocking the proper heat distribution and because of that the furnace is turning off from the high temperature safety thermostat. My suspicion is that the odor you have is caused by the overheating of the heat exchanger due to too little cooling, normally provided by the removal of heat into the warm air blown into the ducts and then into the RV.

 

Before we get to far into trouble shooting, it would be helpful to know a little about your RV knowledge and skills. I would start by gaining access to the area surrounding the back of your furnace, which is where the heat exchanger is and try to determine what is impacting the heat distribution. If you are getting proper air out of all ducts, but only one is hot, then something is causing it. Cold air means the heat is not being removed from the firebox and heat exchanger, which will make it overheat and the high limit thermostat is a safety device to prevent the disaster which would be caused if the furnace continued to heat without proper heat removal.

Link to comment
Share on other sites

I have seen the heat exchanger be cracked.

I have also seen the exhaust tube be rusted through at the weld joint to the heat exchanger.

 

Both only once but I have seen it.

As for the vent problem that will need to be looked for in your RV.

 

Safe Travels, Vern

Link to comment
Share on other sites

Archived

This topic is now archived and is closed to further replies.

Guest
This topic is now closed to further replies.
RVers Online University

campgroundviews.com

Our program provides accurate individual wheel weights for your RV, toad, and tow vehicle, and will help you trim the pounds if you need to.

RV Cable Grip

RV Cable Grip

All the water you need...No matter where you go

Country Thunder Iowa

Nomad Internet

Rv Share

Dish For My RV.

RV Air.

Find out more or sign up for Escapees RV'ers Bootcamp.

Advertise your product or service here.

The Rvers- Now Streaming

RVTravel.com Logo



×
×
  • Create New...