The majority of rv a c freeze ups are caused by low airflow usually due to dirty evaporator or condenser coils.
Rv air conditioner evaporator coil freezing up.
You are running your air conditioner when the outside air is below 62 degrees.
Your air conditioner is low on freon.
You can only see it from inside your rv so there is no need to go up onto the roof and take the cover off the air conditioner.
Insufficient airflow across your air conditioner s evaporator coil.
They pull the water out of the air which makes condensation that builds up on the coils.
When this situation arises you will need to remove the inside cover of your air conditioner and start cleaning.
It is the water running down that coil and into a drain pan that drips off the roof of your rv when the air conditioner is running.
Troubleshooting a frozen evaporator coil in your savannah area home s central air conditioner just might get the cool air flowing again.
More likely it will help you take immediate steps necessary to prevent more damage while you arrange for professional hvac service to repair the problem.
Liz all duotherm roof units have a freeze control device specifically mounted on the evaporator coils.
If either set of coils is dirty the air conditioner needs to work harder to cool the air and transfer heat out of the rv.
A dirty evaporator coil the inside one can cause a lack of airflow across it dropping the temperature and causing your air conditioner to freeze up.
The positioning of the control switch is crucial to proper operation.
When these become dirty gather lint or lots of dust gets on them they stop working or they can freeze.
Check your evaporator coil if your air conditioner is freezing up.
This happens because the refrigerant in the evaporator coils can no longer absorb the heat needed for the coils to warm up.
You can fix this problem from inside your rv and best of all you do not need any tools.
The reason your evaporator coils can freeze is that in addition to cooling the air inside your home air conditioners also dehumidify it.
First a little bit more about what.
It is also a recipe for several other unpleasant problems with your ac like dirty sock syndrome.
That is the evaporator coil and it gets very cold so cold that it approaches the freezing point of water.
Normally this isn t a problem because the condensation droplets fall off the coils into the drip pan.
There are four main reasons your air conditioner may freeze up.
Rv ac evaporator coil freezing up it is the evaporator coils that are responsible for cooling the hot air in your rv.
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.