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Old 11-13-2018, 08:17 AM   #1
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A/C Units Freezing in 2018 CRS

Hi Cedar Creek owners. I have a 2018 Cedar Creek CRS Destination Trailer parked on an RV pad in South (hot and humid) Florida. The A/C units are freezing up, and then blowing ice out the cooling vents. I had a mobile technician come out and reseal all of the suction side ducting and tighten down the lag bolts to prevent exterior humid air from being sucked in.

The problem still exists.

Does anyone have similar problems.

Please help.

Thanks
Rob
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Old 11-13-2018, 08:27 AM   #2
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Quote:
Originally Posted by Subcrit View Post
Hi Cedar Creek owners. I have a 2018 Cedar Creek CRS Destination Trailer parked on an RV pad in South (hot and humid) Florida. The A/C units are freezing up, and then blowing ice out the cooling vents. I had a mobile technician come out and reseal all of the suction side ducting and tighten down the lag bolts to prevent exterior humid air from being sucked in.

The problem still exists.

Does anyone have similar problems.

Please help.

Thanks
Rob
You might check the volts your getting from the power pedistal. Mine has frozen a couple of times and when I checked the volts at the pedestal was low. I have also heard that running it on low has caused the problem for others or too much humidity.
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Old 11-13-2018, 08:45 AM   #3
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Check your filter and air flow. If it is very humid when you start the AC, low air flow can cause the fins to freeze up. If you have a dump valve, open it when you start the AC in a humid environment and once the humidity goes down some close it.
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Old 11-13-2018, 08:55 AM   #4
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When the tech sealed up the ducting did he make sure the partition between the supply and return was sealed up and correctly in place?

Also did he make sure that the freeze coil was in the correct place against the evap coils?

One thing you can do is take a few registers down and hold your phone up in the duct point it both ways and take a few pics to see if the ducts are clogged, loose or crushed.
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Old 11-13-2018, 02:21 PM   #5
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You might check the drain holes up top. I had one freeze up, it was sucking up the water in pan.
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Old 11-13-2018, 02:39 PM   #6
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I have a Wildwood DLX with a similar problem. I used a mirror and flashlight to look down the ceiling ducts and found a constriction in the area where the bump in the roof met the flat portion. I snaked a couple pieces of 2 inch compartment hose to the bend (side by side). This open things up a little and have had no more icing issues. Compartment hoses look like vacuum cleaner hoses with a coiled spring inside to keep from kinking.
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Old 11-13-2018, 03:34 PM   #7
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x2 on FlyBob's advice. Camping around Houston in the summer requires high airflow. Run only on Hi air flow and use the "air dump" instead of the ducts.
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