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Old 05-15-2013, 11:44 PM   #1
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This is more of a general question that I think I know the answer, We have 30amp service at our park, can we run both a/c units together, with my previous Bounder I could but it had a voltage manager. Thanks in advance for any suggestions.
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Old 05-15-2013, 11:52 PM   #2
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We cannot run both AC units on our trailer on 30 amp only 50 amp. I do have a way to run both our units from a 30 amp power pedestal but it takes a few things to do that.
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Old 05-17-2013, 12:35 AM   #3
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Hey Guys, First time out with our Rushmore Lincolnand they are having a bit of a heat wave up here in Grand Forks, ND! Our AC is not keeping up. The bedroom is cold but the living area isn't cool until we open the vent on the AC unit itself (which then is too loud to hear yourself think!). Is this normal for the Lincoln? We sit on the couchup front and with the curtains closed it doesn't feel hot, so we can't figure out why it doesn't cool down. With the thermostat adjusted to try tobalance the temp inside the coach, it still says it's 77 in the front and 68 in the bedroom. Where do we begin to identify the issue? I do hope this notbecause ofthis floor plan. We love it so far, but this would be unacceptable for us. Anyone alsohaving this issue? I can't imagine FL in August! Thanks!
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Old 05-17-2013, 01:33 AM   #4
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Do you have two 15k btu AC units or a 15k and a 13.5k? If it is the latter which one is where? I would guess the 15k is in the bedroom and the 13.5k in the living area.





Let me email Steve Ford (FFFord) with this link and see if he can help you out. They have a FL Rushmore down here in Texas and I think he was having a similar problem.
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Old 05-20-2013, 06:37 AM   #5
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We recently purchased a 2013 Washington model and are having the same problem. The unit in the LR runs constantly but does not cool down and the 15000 BTU unit is in the LR.We live in Florida and this is not acceptable.
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Old 05-20-2013, 07:29 AM   #6
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Old 05-20-2013, 07:31 AM   #7
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Ours is the 2014 Lincoln, it's not even hot in Cincinnati, and the a/c can't handle it, might be a short lived unit if this is all it does.
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Old 05-20-2013, 08:47 AM   #8
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Quote:
Originally Posted by RJHewitt

Hey Guys, First time out with our Rushmore Lincolnand they are having a bit of a heat wave up here in Grand Forks, ND! Our AC is not keeping up. The bedroom is cold but the living area isn't cool until we open the vent on the AC unit itself (which then is too loud to hear yourself think!). Is this normal for the Lincoln? We sit on the couchup front and with the curtains closed it doesn't feel hot, so we can't figure out why it doesn't cool down. With the thermostat adjusted to try tobalance the temp inside the coach, it still says it's 77 in the front and 68 in the bedroom. Where do we begin to identify the issue? I do hope this notbecause ofthis floor plan. We love it so far, but this would be unacceptable for us. Anyone alsohaving this issue? I can't imagine FL in August! Thanks!

Sounds like a problem with the duct work since the direct vent works OK. There are several potential issues, the duct that connects to the A/C unit may not be sealed very well, or it may not be sealed well at each of the outlets. Also, the duct is pretty small and the round outlet may stick up into the duct too far and restrict air flow. Finally, the duct may not be sealed well after the last outlet in the run.

Unlike an upper BR floor plan, the large open area allows greater air circulation with cooler air dropping into the kitchen area and hotter air rising into the LR. And w/o a door or curtain to control air flow, the upper LR will always be hotter than the rest of the trailer. I would verify that the front A/C is really a 15k unit by checking the serial number.

Where is the thermostat located? If it is located in the lower area, and the set temp is too high, then the A/C may never switch to high speed to provide maximum cooling.
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Old 05-20-2013, 10:00 AM   #9
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Larry is correct in his statement about the duct work and the lack of sealing off the ends and losing cold air between the ceiling and attic area. I wish we still had access to the old forum as there was much information about the issue there (it has been ongoing for years). We were losing cold air in our old Cruiser due to one of the end runs on the duct work not being completely sealed. Our current unit had the end run in the bedroom duct work not even sealed when we got it.

Once I sealed it with expanding foam and we pulled all the AC registers and sealed the area between the ceiling and attic area with aluminum AC/heating tape we greatly increased the cold air in the trailer. Not saying this is your issue but it might be something to look at. If you pull a register near one of your end runs on your duct work you can use a small mirror and flashlight to see if they are sealed. I even had Crossroads send me the layout of the duct work so I knew where everything was. Larry has also giving you some other good things to check.
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Old 05-20-2013, 01:40 PM   #10
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I removed the directional vents in the ceiling last week. Found pilot holes in the attic ceiling. From when they drilled the ceiling air vent holes. I used foil tape to seal over them. We could feel a increase of cold air. Also in our Jefferson, the bedroom air conditioning has vents we keep closed. On the thermostat, we have the fan set on high with the air conditioner running. Its was 100° here last week. Our placed stayed at 72° to 74°. We did cover widows for extra shading. Had a new awning installed today over couch window. Should help a lot, since it faces south.
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