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Honda Civic Climate Control System

73 messages,  Last post on Sep 26, 2008 at 10:17 AM

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What is this discussion about? Honda Civic, Heating / Cooling, Coupe, Sedan

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#70 of 73 Deactivating A/C by will26 Mar 04, 2008 (9:10 am)
I was just reading on another website how people are putting in a code to deactivate the A/C when you use defrost. Using the code will give the person the option of turning the a/c button off. Would it be a good idea to use the code? I like the idea of it not running it all winter and think it might have something to do with my gas milage drop all winter but I'm just afraid putting in some code might mess with other things. Any ideas.. Replies to this message: shipo (Mar 04, 2008 10:13 am) tysalpha (Mar 26, 2008 5:17 pm) kenlw (Sep 26, 2008 10:17 am)
#71 of 73 Re: Deactivating A/C [will26] by shipo Mar 04, 2008 (10:13 am)
Replying to: will26 (Mar 04, 2008 9:10 am) One if the pitfalls of not running your A/C all winter is that the hoses and seals can dry out and/or corrosion can form on critical internal components. The refrigerant in your A/C system includes a lubricant and conditioner, and the circulation of the system (which sends the refrigerant through a dryer if I'm not mistaken) on a regular basis is key to keeping the system trouble free for many years. FWIW, most A/C systems deactivate when defrost mode is selected once the temperatures get down beyond a certain threshold (sorry, I don't know the specifics of the Civic system).   Best Regards, Shipo Replies to this message: tysalpha (Mar 26, 2008 5:17 pm) kenlw (Sep 26, 2008 10:17 am)
#72 of 73 Re: Deactivating A/C [shipo] by tysalpha Mar 26, 2008 (5:17 pm)
Replying to: shipo (Mar 04, 2008 10:13 am) Agree about running the A/C in winter. In fact, I would recommend using the A/C at least once a week, provided it's above about 40F outside. I've had no worries with my 07 Civic so far, but in my previous car I forgot this routine one winter (when the car was about 4 years old), and the A/C was completely ruined afterwards. Replies to this message: kenlw (Sep 26, 2008 10:17 am)
#73 of 73 Re: Deactivating A/C [tysalpha] by kenlw Sep 26, 2008 (10:17 am)
Replying to: tysalpha (Mar 26, 2008 5:17 pm) If your AC was "ruined" after one winter of not using the AC, i think your problems were elsewhere. Once enough freon leaks out, the low pressure switch will prevent the compressor from even coming on, preventing any subsequent damage to the system.   Worst case may be that the pressure in the system was so low as to allow moisture to enter and "soak" the dryer. In that case replacing the dryer would be the extent of the damage once the actual leak was located and repaired.   4 years of use (imho) indicates shaft seal wear on the compressor, the most common leak point on modern auto AC units after a few years. r134a is more prone to leaks anyway due to the smaller molecules .

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