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Old 06-12-2014, 06:47 PM   #1
Bre
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2014 365SAQB Air Conditioners

We purchased our RV in November of 2013. The AC in the master went out about two weeks ago, when it started getting warmer outside. We had it replaced under warranty and the new AC works great... However, we can't seem to keep the other end of the RV cooler than the mid 80's. Both AC's seen to be blowing cool air but we can't seem to even out the temp in the RV. Any suggestions? It's only June and I'm afraid what July and Aug is going to feel like in this Texas humidity heat.
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Old 06-13-2014, 05:09 AM   #2
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Bre. Lots of threads about this one... You can search the forum for other response threads too bit here is what I have read.

First check to see you have 2 vent registers in the rear bedroom. Some came thru with only one. If you only have one that is one too few for such a large bunk house. Cut a new one in.

Second thing is block the furthest ends of the ceiling ac ducts with cardboard and aluminum tape. Some units ceiling ducts do not have an "end" which means the cold air goes into the ceiling. To do this I imagine you need to remove the last register grill and tape/secure the cardboard to fit the inside size of the duct. Others have said this makes a difference.

I have an early year 2014 with the second ac. It hasn't been warm enough yet here in the north east to get mine cold but this weekend is supposed to be very warm so I will check how mine is and check back.

Let us know what you find.
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Old 06-13-2014, 05:13 AM   #3
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One other thing bre... You had one of the ac replaced. Remove the filter and cover to make sure they replaced the unit with a "ducked" unit and ducted it in properly. These ac units are ducted and direct vented. If you are not getting the right air flow to the ceiling ducts the rear will stay warm.
2 AC in these 365's is plenty. I would check to make sure they installed the new ac properly.
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Old 06-13-2014, 11:46 AM   #4
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Thank you for your response. I have been reading others responses and I have already done all of the things you mentioned except for looking inside the new AC. I had not thought about that. I just went and looked and it is open to the duct work. So no problem there.

My bunkhouse had 2 vents already so I just went around and retaped all the vent a just so make sure they were not leaking into the ceiling. Some were but I have not noticed any improvement in the bunkhouse airflow. I also put a stop on each end like you and others said to do, Not much change. We looked for obstructions in the duct but there were none. I am at a point where I don't know what else I could do.

I do have another question, the thermostat, should it always have the same temperature for each zone? The bedroom is freezing as I have said and it will still say it's the same as the the living room which is noticeably warmer. I am just wondering if others thermostat does the same thing or if you can actually make the 2 zones different temperatures.
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Old 06-13-2014, 11:47 AM   #5
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We spent the first week of May in Florida in ours and I was less than happy with how the camper cooled, even with 2 AC's. It seemed we could hang meat in the bedroom but the living room and bunkhouse had some issues keeping up. With that said, we did have the thermostats set to 68 and it was in the 90's outside most days. The AC in the bedroom would cycle on and off but the main AC ran almost constantly and kept the living room in the mid 70's.
I have since looked more at our AC's with the inside trim off and found that the way the ducts are sealed left room for improvement. In the main AC, where the vent to run to the front of the camper connects, it was not sealed at all on one side so that cold AC is just blowing into the ceiling in the living room. I have since looked at where the vents come out and noticed they were not sealed the best either....so I have started fixing them.

Next time we get to camp (hopefully soon) I will take my IR temp gun I carry and go over the ceiling with it. Hopefully if there are any drastic differences in temps I will be able to find them with it and figure out why air is leaking into the ceiling.
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Old 06-13-2014, 11:48 AM   #6
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We tent to keep each zone at a different temp, just cause we can if nothing else
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Old 06-13-2014, 12:37 PM   #7
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If you have the dual thermostat you can set diff temp for each. The front bedroom has it's own temp sensor
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Old 06-13-2014, 12:47 PM   #8
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The temperature is always the"same" I guess something's wrong with my thermostat too. We are going to have someone come out and look at it again. Maybe they can tell me what's going on. I will post what I find out.
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Old 06-13-2014, 03:00 PM   #9
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Is this the thermostat you have?



If you are looking at the number displayed there, that is what the thermostat is set to. to see what the temperature in each zone is you have to set it to that zone and then hit the inside temp button.
For some reason that took me longer than it should have to put that together so I figured I'd throw it out there.
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Old 06-13-2014, 03:35 PM   #10
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The only thing different on mine is I have no outside temp. But I know what is on the screen is the set to temp. When I push the inside temp button it is the same for both zones. When I have it on zone 1 and push inside temp it will say a number. What I switch it to zone 2 it always says whatever zone 1 says. It is strange. I can't find much about these thermostats online and I had no paperwork on it with my fifth wheel. I can find the instructions but they don't help me with the problem.
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