How do you flush air conditioning system?

The only reason to flush the ac system is if you had a compressor burn out if this did not happen you just need to have the system recharged you might have air the the system pull a vaccum on the system this should remove the air and the moisture If you replace the compressor you should replace the drier and expansion valve and flush the system To flush it you need a flush solution and clean dry compressed air. Put the solution in and force it out with the air one line at a time until the flush comes out clean. Install the new parts with the proper amount of oil and recharge the system.

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