Chances are your indoor unit s evaporator coil is frozen solid and cold liquid refrigerant is flowing to the outside unit through the refrigerant line which is why it s covered in ice.
Ac unit in attic frozen.
The evaporator coil is the component of a central a c unit that actually freezes.
Here are some of the most likely culprits.
Turn the air conditioner to the off position and turn the fan switch to on manual on on the thermostat selector switch.
This is one of the most common causes for restricted air flow through your air conditioner.
Tape a tarp or large trash bag under the unit to catch the water as the ice thaws.
Once you discover a frozen unit turn off the system and turn on the blower to help thaw the evaporator coils.
Essentially anything that blocks airflow to the evaporator coil can lead to a frozen evaporator coil.
So what s the deal.
You should be using a high quality air filter and replacing it every 2 to 3 months.
This will help aid the defrost of an icy evaporator coil and the rest of the frozen air conditioning unit.
Freeze up can also take place if freezing rain or snow accumulates on the fan blades or is allowed to sit on the exterior of the unit.
If you change or clean your filterper the manufacturer s instructions you ll be fine.
Check your air conditioner s air filter if your ac is freezing up.
The dirtier an air filter gets the more it can restrict airflow through your system.
This component of the air conditioner transfers evaporates heat from the inside to the outside of your north america area home.
Over time your system s evaporator coil will become covered in dust dirt grime and more.
Defrost the unit by turning it off.
The two main reasons why the evaporator coil may freeze.
Heat pumps can freeze up in cooling mode also as a heat pump is an air conditioner in cooling mode.
After the ice thaws hand dry the unit and let it stand to dry for 24 hours.
In the winter it s not uncommon for an outside compressor unit to freeze up if the defrost cycle on the unit is set to run too infrequently.
If your outdoor unit is frozen and you can t remember the last time you changed your air filter you might have identified your problem.
Your outside air conditioning refrigerant line is covered in ice which seems crazy in arizona heat.
If it feels warm the evaporator.
We re no stranger to frozen outdoorair conditioner compressors.