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Air conditioning dryer unit

Tiny
KENENOON
  • MEMBER
  • CHRYSLER
I was told I need a new condenser for my ac, but 1 mechanic says I have to replace the dryer unit also. But another mechanic says they never replace the dryer unit unless they replace the compressor ( for warranty reasons) he says its reccommended to replace the dryer unit every 3 years but nobody does, its a waste of money. I trying to figure out what to do and not waste money. Any ideas?
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Wednesday, May 10th, 2006 AT 3:41 PM

1 Reply

Tiny
LOSONE
  • MECHANIC
  • 1,616 POSTS
The dryer does exactly what the name implies, it removes moisture from the refrigerant. It also holds refrigerant oil. R0134A inhibits moisture. It is worse than R-12 freon

My rule is to replace the dryer anythime the system is opened to atmosphere. Moisture causes internal A/C issues especially the compressor and reduces cooling efficiency.

There is no rul that I know of after 40 + years as a garage owner to replace the dryer every 3 years except as a sales gimic.
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Wednesday, May 10th, 2006 AT 4:51 PM

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