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Question by  echi (3)

How to troubleshoot error 66 on carrier air conditioners?

 
+7

Answer by  salsafoodie (3146)

There could be a wide variety of problems that can occur with an error 66. One of the most popular problems in the anti-freeze. You may have to check the gauges to make sure that all of the freeze is there and filled correctly. You should also check for leaks that are lying on the ground.

 
+6

Answer by  Jennfier (339)

Most air conditioners come with a manual, look through the table of contents and there is a section for error codes, you will see what it means.

 
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