Announcement

Collapse

Forum News

Save our forum! We need to have more activity to keep to our forum form shutting down forever! You can make a difference! Increase discussions today!

See more
See less

No air flow in from Heat Ducts

Collapse
X
  • Filter
  • Time
  • Show
Clear All
new posts

    No air flow in from Heat Ducts

    We have 2018 381TH High Country. It was delivered in august of 2017 but kept in storage until spring of this year. We have now discovered that we have too much air floor coming from the heat duct in the living room area and Zero air flow in the duct work in the Bathroom and bedroom. We tried closing the front vent to see what would happen and the answer was nothing. Just top check things I took a piece of tissue paper and placed it on the vent in the bathroom. Nothing moved...
    Has anyone had or heard of anything like this?

    #2
    Sounds like the air tube that connects to the bathroom duct has gotten disconnected. You would have to remove the wall panel in the basement to gain access. It's a simple fix once you gain access.
    Scott L.
    2012 Ram 3500 Dually LongHorn
    2014 3402RL Legacy Edition

    Comment


      #3
      Thanks for the input. Will have to see how big a challenge this will become.

      Comment


        #4
        Appears to be bigger than first imagined. Aside from the fact that the main duct work from the middle of trailer back is full of holes. There is a 2.5 in tube that runs under the basement floor and attaches to this 2 in by 8 inch duct . I first thought this was the heat line for keeping the tanks heated but after looking over the duct routing, this appears to be the supply for the kitchen, bathroom and bedroom. Problem is it is attached, kind of, in the basement. So how does one see where the other end of this flex tube goes. It must be at the heat source but I am not certain where that is.. Help please

        Comment


          #5
          After looking and studying the connection group. Does the thermostat in the bedroom have any control over airflow from the heater? Does the heater have a flow control system to close off ducting when not necessary?

          Comment


            #6
            Your furnace looks like it is near 1 of the storage doors on the curb side. It has a brown cover and an 1 1/2" pipe exhaust sticking out of it. All duct work come from there. You might luck out by removing the bathroom duct cover and unscrewing the housing. From there the hose might not be connected to duct outlet. That would be the easiest way to fix your issue.

            To remove the duct cover simply grab the duct cover and try to get your fingers or a screw driver and pry out and up. You'll see on top of the duct 3 indents. Those are locking tabs. Once off should be 3 screws to remove duct assembly.
            Scott L.
            2012 Ram 3500 Dually LongHorn
            2014 3402RL Legacy Edition

            Comment


              #7
              Thanks for the input. Will try that and see where it goes from there. Thank you for your patience as well.
              Silly me I thought for the money I spent on the trailer all of the major functionality would have been checked.
              Did not know there was no standards to control the quality of these supposed to be full time trailers. Sorry if this offends anyone, just me venting

              Comment


                #8
                Originally posted by Leon Black View Post
                Thanks for the input. Will try that and see where it goes from there. Thank you for your patience as well.
                Silly me I thought for the money I spent on the trailer all of the major functionality would have been checked.
                Did not know there was no standards to control the quality of these supposed to be full time trailers. Sorry if this offends anyone, just me venting

                Almost all of us are in agreement with your statement.

                Scott L.
                2012 Ram 3500 Dually LongHorn
                2014 3402RL Legacy Edition

                Comment


                  #9
                  Tracing the heat tubes in this trailer has been a challenge. Unfortunately it is not going to be easy. In the trailer I have there is not a flex tube going into the bathroom or the bedroom. In this trailer keystone made a master duct out of two structural members and flat plate aluminum. They actual stapled the very light flat aluminum plate to the structure. On one end of the master duct the heater tube coming from the heater was attached. Let me back up and say it was kind of attached. In any case my bathroom and back bedroom are nothing more than cuts into this master duct. Pictures 2 and 3.

                  The master duct terminates in the bedroom roughly 3 inches beyond the bedroom floor duct.
                  In picture 1 you see the INPUT connection is NOT and the end of this master duct. I expected the master duct to be terminated and sealed at this end as well. Reaching around to the termination end I found, or at least felt, something that feels like plastic bags or taped material of some sort. Still requires investigation.

                  Long story short:
                  1. Still do not have air flow to the back - Need to pull the delivery tube loose to see how much air is being delivered.
                  2. The master duct, even if it had air, is one HUGE leak - Not sealed properly over the entire length
                  3. The end of the master duct needs to be completely and correctly sealed. - Getting back there is going to be a real challenge

                  Comment


                    #10
                    Finally down to the root cause. Seems this tube coming from the heater and semi-connecting to the master duct has almost no airflow. I had to feel real close or I would have said it had zero airflow but it does have some. Not enough to fill a this cavity, support two rooms and overcome all of the leaks. Judging by the air flow coming from the other two tubes (Front Room and kitchen) it appears there must be something wrong with the tube after leaving the heater and before it gets to the basement area.

                    From other posts it seems Keystone has a history of crushing these tubes during construction. Anyone have ideas?

                    Comment


                      #11
                      Some how try and attach a new tube as close to the furnace as possible.

                      Dld you see the main duct crushed anywhere?
                      Scott L.
                      2012 Ram 3500 Dually LongHorn
                      2014 3402RL Legacy Edition

                      Comment


                        #12
                        No. I can see all of the ducks from the kitchen if I take the air returns off. They look fine at that point. The one looks fine when it comes into the basement. Can not see in between.

                        Another experiment has been tried.

                        Went to Lowes and found some floor duct covers with shutoffs. Closed off the front room and the kitchen. As expected I get more air from duct in the basement. Not nearly the amount that is being delivered by either the front room or the kitchen but at least more. So I was thinking about how I would go about replacing the existing pipe from the furnace all the way to the basement. The only way I could see to do it with the trailer still in one piece is to use the existing pipe as a snake and pull it through. If no one got cute and actually anchored the pipe in the underbelly somewhere it might work. I read somewhere that Keystone was actually running smaller lines inside the current lines to fix this sort of thing...

                        As much as I did not want to, I reckon it is time to call a trailer repair place and make an appointment into the pit of long waits. Without Keystones help I doubt most repair places will even look at it.

                        Stupid move of the day, got a flexible stove pipe cleaner just to see what would happen. I made it 4 feet into the pipe. can not make the 90 degree angle when the pipe goes into the frame.

                        Comment

                        Working...
                        X