If the pressure changes in your system the r22 might begin to act differently.
What would cause an air conditioner to ice up.
Running central air conditioner on low outdoor temperature can cause indoor coil to build frost.
Instead of removing hot air from your home the coils are transferring air that is too cold.
This can happen as the result of.
Since most ac units sit outside or at least have partial outside exposure the evaporator coils can get a buildup of dirt and grime.
Lack of refrigerant inside central air conditioner cause the evaporator coil indoor coil to freezes up.
The warm air can keep reach them as well which lets the coils ice over.
This buildup can be a little like putting insulation around the coils.
The intake should be receiving steamy air typical of alpharetta in the summer and sending it outside your home.
Air conditioners ice up because the temperature in the condenser s evaporator coil has dropped too low.
A c units ice up when the flow of hot air has stopped.
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.
Perfect or fine leaks.
Outdoor temperature is too low.
Restricted air flow the major cause of ice build up on an air conditioner is restricted air flow.
Air conditioners freeze because the temperature in the condenser s evaporator coil has dropped too low.
At this point ice forms and the unit starts dripping when the ice melts.
Causes of an a c icing up.
Over time the ice will begin to act as an insulator thus preventing the smooth operation of the air conditioner.
As the warm and moist air from your house moves to the evaporator the moisture will begin to condense and will cause the coils to freeze.
Small leaks within the evaporator coil can cause the evaporator coil to build ice around it.
A dirty air filter or dirty evaporator coils.