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04-17-2006, 10:48 AM
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#1
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Montana Fan
Join Date: Jan 2006
Location: Forney
Posts: 236
M.O.C. #5206
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AC froze up
Used my new Mountaineer for the first time over Easter weekend.
The first night it was pretty warm outside, but then cooled of nice.
The AC cooled the trailer off but then froze up to the point where no air was blowing. Hm..... the Unit worked fine at home.
I have a friend who owns an AC Service Co. and he showed me where the sensor is that prevents the Unit from freezing.
He removes the Air Filter and puts his finger on the sensor to show me specificaly where the sensor is. In doing so he notices the sensor is not shoved up againts the coils as it should be, so he pressed the sensor against the AC coils.
He thinks that may be my problem. The next night the AC ran flawless all night long
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04-17-2006, 12:01 PM
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#2
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Montana Fan
Join Date: Mar 2004
Location: New Lisbon
Posts: 175
M.O.C. #1316
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What does the sensor look like, I also have freezing. Thanks Ron
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04-18-2006, 02:46 AM
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#3
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Montana Master
Join Date: Nov 2002
Location: Weatherford
Posts: 1,383
M.O.C. #9
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Can this sensor bounce off during travel? This is a GOOD thing to know about - even if we've never had the problem - YET !!
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04-18-2006, 04:24 PM
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#4
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Montana Master
Join Date: Nov 2002
Location: Midlothian
Posts: 956
M.O.C. #40
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Remove your air filter and look above the control box. You will see the fins for the ac and the sensor is attached to the fins and has two wires coming down to the control box. The sensor is atached to a piece of metal and that is slid in between the fins.
Mine went bad last summer and had to replace the sensor.
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04-18-2006, 05:41 PM
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#5
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Montana Fan
Join Date: Feb 2005
Location: Virginia Beach, VA
Posts: 328
M.O.C. #3149
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We have had our AC freeze up too. Just the last couple of days. Lo and behold, the anti freeze up sensor had fallen off the coil. When I adjusted it and stuck it back on, all is fine. Thanks so much for this thread. What a coincidence this info should arrive right on time.
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04-19-2006, 07:21 AM
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#6
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Montana Fan
Join Date: Sep 2004
Location:
Posts: 304
M.O.C. #2055
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The sensor falling out is a common problem. The solution is to tie wrap it in. Just look around, and you will find something to tie wrap the sensor wires to. This takes the weight off the sensor, and it will not fall out. Did mine a year ago, and no more problems!
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04-20-2006, 03:57 PM
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#7
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Montana Master
Join Date: Nov 2002
Location: Oceanside
Posts: 20,028
M.O.C. #20
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I wasn't aware of the sensor problem so that's good info to know. Another possibility should that not solve it for you -- DuoTherm AC units are infamous for freezing up when run on low fan speed, especially in high humidity. As far as I know there is no solution other than buying a Coleman, but the workaround is to use high speed fan only.
I plan now to check the sensor on ours.
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04-21-2006, 05:55 AM
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#8
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Montana Fan
Join Date: Sep 2004
Location:
Posts: 304
M.O.C. #2055
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Also, they will freeze up when you use the "quick cool" feature. When the quick cool grate is open, the cold air is sucked back up into the return section, and the unit will quickly freeze. With the grate closed, the cold air exits at the remote vents, and warmer air enters the return!
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04-21-2006, 04:10 PM
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#9
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Montana Fan
Join Date: Apr 2005
Location: Spokane Vallley
Posts: 268
M.O.C. #3532
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We would also agree with Steve as we have had the same problems in the past, especially in humid weather....Les and Sue
Quote:
quote:Originally posted by sreigle
I wasn't aware of the sensor problem so that's good info to know. Another possibility should that not solve it for you -- DuoTherm AC units are infamous for freezing up when run on low fan speed, especially in high humidity. As far as I know there is no solution other than buying a Coleman, but the workaround is to use high speed fan only.
I plan now to check the sensor on ours.
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