Why Does My Roof Air Conditioner Freeze Up

Typically your evaporator coil and your outdoor unit will be frozen over.

Why does my roof air conditioner freeze up.

They pull the water out of the air which makes condensation that builds up on the coils. You or your ac maintenance technician should have a schedule based on your systems requirements to ensure that your filters are clean and working properly. The outdoor part is just what you see first. When this happens try to run the air conditioner using fan mode or simply use the outside air to ventilate your room.

So cold in fact that the moisture on the coil turns to ice. If a dirty filter is the source of your troubles all you have to do is change it. Once it drops below freezing point you will start to have frost and ice build up on your lines and evaporator coil. The reason your evaporator coils can freeze is that in addition to cooling the air inside your home air conditioners also dehumidify it.

The limited air flow then causes condensation to build up and freeze on the coils and over time will freeze up the system. Airflow brings warm and moist air to the ac which is then conditioned. Another possible cause is when you are operating your air conditioner when the outdoor temperature outside the house is low. When these filters fill up they become clogged and restrict airflow which limits the amount of air passing over the coils.

Evaporator coils not only cool the air inside your home but they also dehumidify your space. The third most common cause of ac freezes is a dirty air conditioner coil. 3 air conditioner freezes up low outdoor temperature. Liz all duotherm roof units have a freeze control device specifically mounted on the evaporator coils.

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. If the ac is not getting enough airflow it will cause the unit to over cool and lead to the freeze up problem. The good news is that this is obviously a simple fix just replace the filter. They pull water out of the air and this causes.

Have someone check for the proper positioning of the control switch and that it indeed measures no continuity when the ambient temperature is over 69 degrees.