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A frozen indoor coil indicates that the refrigerant level is low, or the air filter is
clogged. In either case, the coil will get colder & colder until the condensation on the
coil turns to ice. This condition can be very harmful to the air conditioner, and is a
common cause of bad compressors.
In the event of a freeze-up, turn the system off. Check the air filter. If the filter is not
clogged, the air conditioner probably needs service.
The current law prevents the use of R-22 in NEW systems after 2010. The law also
caps production of R-22, and will result in higher prices as supply tightens. R-22
should be available to service your air conditioner for a long time to come.
Temperature variations from room to room result when duct
work in incorrectly sized. In some cases, our technicians are
able to rework the duct system to improve airflow. Another
solution may be to replace the windows in a hot room with
Low-E glass or have the existing windows tinted. The
reduced sun load will cool the room and save energy.
Should I repair the system or just get a new air conditioner?
Compressors fail for a number of reasons. One of the most common is the "burnout." In
this situation, acid and burnt varnish are distributed throughout the system
contaminating the indoor and outdoor coils and the refrigerant piping. This acidic oil is
very difficult and costly to clean-up and will contaminate and shorten the life of the new
compressor. In a burnout situation, we recommend replacing the entire air conditioner
(indoor, outdoor, and piping) to insure long life and reliability of the new system.
If the compressor failure is due to broken valves, lightning strike, etc., compressor
replacement a feasible option. A homeowner should then consider the current age of
the system, the energy saved by a new high-efficiency A/C, and benefits of a new
system warranty.
