Question about Dometic Rooftop RV Air Conditioner

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Freezing up The exchanger that provides the inside cool air is freezing up. It looks like the thermo couple came loose - it looks like it simply pushes between the vanes of the exchanger to detect how cold it is and allows the unit to cycle - before I put it there, I wanted to be sure that it doesn't mount somewhere else that I can see.

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  • Dometic Master
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Hi,
That would be the bulb for the exspansion valve and should be strapped to the copper where it exists the coil...
But that is probably not why it is freezing up....
That is more likely caused by a slow leak that has the unit undercharged or a bad air flow...often caused by a plugged coil or air fliter...

Here is a tip for other things you can check....


Air Conditioner Trouble -Review the Possibilities
http://www.fixya.com/support/r3571569-air_conditioner_trouble_review_the_possi

heatman101

Posted on Jul 30, 2010

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6ya6ya
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Posted on Jan 02, 2017

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What are heat exchangers used for?


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Most manufacturers of heat exchangers provide heat exchangers to businesses for industrial purposes. Heat exchangers are an effective way of making the most of heat energy. A good example to illustrate this can be found in how heat exchangers are used in cars and buses. Most buses use heat exchangers to use the heat from the engine to warm the bus. This is a more effective way to use the energy than using electric heating. Car radiators are also a form of the heat exchanger as they use cold air from outside to cool the water and keep the engine working properly. The heat loss from the radiator is then used to warm the inside of the car.

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An air-to-air exchanger is used to recover heating or cooling and to improve the air quality of the building that it serves. Typically an air exchanger has two fans, one blowing air into the house and one blowing air out of the house. In the winter time the one fan brings the outdoor cool air through the core warming it with the warm stale air you are exhausting. In the summer time the warm air from the outside will be cooled as it enters through the core to save on your cooling.

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There is some controversy about the savings of exchangers. Not only does it require electricity to run the air exchanger, but the air the exchanger brings into your house must be brought up to temperature. This may require that more electric is used to cool your building or that more fuel is also required for heating.

The amount of air that these air exchangers bring into a home may vary depending on how the system has been installed. The codes in many places require a minimum amount of air to be exchanged. Check with your codes official to see what the requirements are for you.

Air exchangers can be a very good thing for many buildings. Especially those that are very large and typically have a lot of occupants with little natural air exchange from doors or windows being opened. However they are also a health hazard if they are not serviced

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Runs steady, i have unplugged it for a day,no results,checked underneath and no freeze on coil,will make ice cubes in tray but breads,perogies, icecream soft couple of tubs of soup staying solid, its only...


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Hi,

The panel on the side has screws in it. Remove them and remove the panel. Then to get to the control panel, you have to remove the innet sheet metal panel.
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