Why Does My Rv Ac Keep Freezing Up

R22 refrigerant has different physical properties at various levels of pressure.

Why does my rv ac keep freezing up. It puts out good cold air but it will freeze up at least twice daily. If i m correct the a c pulled humid air in from outs. When this situation arises you will need to remove the inside cover of your air conditioner and start cleaning. Leaking refrigerant is another very common issue and can be easily diagnosed by a technician.

However the problems causing a frozen ac are preventable with some regular maintenance and tune ups. Low outside temperatures can be one cause. If you set your thermostat too low the ac is going to blast chilled air which will inevitably lead to over cooling and condensation. Rv ac evaporator coil freezing up it is the evaporator coils that are responsible for cooling the hot air in your rv.

Sometimes even in the middle of the night when the sun is down. There are a few reasons why the ac condenser and evaporator coil can freeze over. Tune ups and changing air filters regularly go a long way to preventing mechanical failures clogs and leakages. In many cases freezing up ac is simply the result of a poorly configured thermostat.

That is the evaporator coil and it gets very cold so cold that it approaches the freezing point of water. A freezing ac is a very common frustrating problem that homeowners face. Is your air conditioner freezing up inside or outside. Here in texas with temperatures over 100 degrees every day our a c unit would keep freezing up leaving us without cooling for over an hour while it thawed.

When these become dirty gather lint or lots of dust gets on them they stop working or they can freeze. For those who have never looked up into their air conditioner if you removed the filter you see from inside your rv and look up into it you will see a finely finned cooling coil. Simply put your air conditioner is freezing up because something is either causing the freon in your system to expand more than it is designed to which in turn is making your coils colder than normal or something is preventing the air in your house from transferring its heat into your system. This can also result from running an ac at a sufficiently low temperature for long enough.

In a properly functioning system the way the refrigerant is passed through the lines it is at a temperature where condensation may form on the outside of the line. I believe this is a self inflicted problem caused by leaving the roof vents open while running the a c. The common causes of freezing can be easy to spot just by taking a look at your ac system. This will happen whether we are parked in shade or sun.