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Old 07-16-2012, 09:00 AM   #1
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Coleman - mach airconditioner ?

We just returned from our first full week in our 23B. On a few days the temps were quite hot and humid so we put the air con on. Now I was expecting it to run like the one at the house, turn its self off and on to maintain a temp. This thing ran the entire time and was so noisy. It did keep the trailer nice and cool, but my question is, is it suppose to run all the time??????? like a fan. (We ran it on cool low and did not have the temp control knob set to the cooldest setting, just a little past the half way mark.)(all the way down made the trailer to cold)
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Old 07-16-2012, 10:14 AM   #2
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Does your unit have a wall thermostat or are the controls located on the A/C unit? My guess is that they are located directly on the unit and that the fan was running the entire time and the compressor was cycling on and and off when necessary.
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Old 07-16-2012, 11:07 AM   #3
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On that particular A/C unit the fan runs continuously and the thermostat cycles the refrigerant compressor only.
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Old 07-16-2012, 06:05 PM   #4
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You should be able to hear the compressor kick off and on. Try turning the temperature knob down until you hear the compressor kick off, or turn it up to hear it kick on.
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Old 07-16-2012, 08:11 PM   #5
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Quote:
Originally Posted by sunstarsmoon View Post
We just returned from our first full week in our 23B. On a few days the temps were quite hot and humid so we put the air con on. Now I was expecting it to run like the one at the house, turn its self off and on to maintain a temp. This thing ran the entire time and was so noisy.
That is how yours and mine work. There is no automatic on/off operation for the whole unit based on a pre set desired temperature. Fan runs all the time while the compressor cycles on and off depending on the temperature setting dialled in. Getting ducted air helps if one does not have a thermostat that controls the AC .
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Old 07-16-2012, 09:07 PM   #6
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Thanks for all the replies. I was worried that it was broken. Just wished that it was quieter
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Old 07-16-2012, 10:18 PM   #7
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The ducted units are much quieter. I have a ceiling mount in another vehicle they can be quite noisy.

Even with the thermostat, I leave my fan on 24/7 when it is hot out. It gets too stuffy for me otherwise.
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Old 07-17-2012, 07:13 AM   #8
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Me too. I like the RV cool and not stuffy so the only time it is off is when the humidity is low to normal and the outside temps are around 75 or so. Going out next weekend when I expect the temps to be in the mid 90s. The PUGs will be on and the AC will be working full time.
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Old 08-15-2012, 07:08 AM   #9
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For what it's worth I hated the sound at first also. However, after 7 trips this summer I find that it blocks out the campground noises from the early risers and we can all sleep a little later.
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Old 08-15-2012, 08:20 AM   #10
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For what it's worth I hated the sound at first also. However, after 7 trips this summer I find that it blocks out the campground noises from the early risers and we can all sleep a little later.
Yeah, you can't hear the racoons and bears rummaging through the garbage cans!:hihi:
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