Your units are sealed! Almost 99% of the time if the unit has not been damaged it just needs to be serviced. IE. CLEANED. The freon dos not wear out so the only problem is that the coils inside and out get dirty and the units efficiency drops. So just a good cleaning should take care of the problem.
Duo Therm Heat Pump Repair Problems
in artbalog's Blog
A blog by artbalog@aol.com
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Your units are sealed! Almost 99% of the time if the unit has not been damaged it just needs to be serviced. IE. CLEANED. The freon dos not wear out so the only problem is that the coils inside and out get dirty and the units efficiency drops. So just a good cleaning should take care of the problem.
Good luck and let us know how it comes out.
Barry