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AC Has Water In It


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Schmidt1989
New User

May 11, 2016, 10:06 PM

Post #1 of 3 (1511 views)
AC Has Water In It Sign In

Hey everyone,

I have a 2007 Honda Civic coup and my AC freezes up after a while on full-blast. After much research into why it was doing this, I've determined that the AC condenser (compressor?) must have some water in it. If I set the AC to max and set the fan to full, I get excellent air for about 5-8 minutes, then the air stops coming out, but the fan still runs at full speed. If I turn the AC off and s it to heat, air still doesn't blow out for a good 30 seconds, and then comes out at full blast. Although I have a limited understanding of how cars function, I am an engineer and came up with the probability that a part is just freezing up. I have a K&N cabin air filter in there that is virtually free of debris. There's a good chance water did get into the system as I live in Austin, Texas, and we got some pretty major flooding down here last May.

Anyway, so I know the 'why' of my car's issue, but I'm unsure how to remove the moisture in the system. If there is a way to drain the system entirely, couldn't I just use one of those compressed air things to put new refrigerant into the AC system?

Thank you for your time.


Tom Greenleaf
Ultimate Carjunky / Moderator
Tom Greenleaf profile image

May 12, 2016, 2:45 AM

Post #2 of 3 (1503 views)
Re: AC Has Water In It Sign In

Arggh! Not sure what flooding would harm the most for A/C but NOT the refrigerant charge! Don't tough that yet.
This sounds just like it's icing up the evaporator to the point of low air flow. If so would drip a lot when shut off (parked) and work again or do so while driving along just OFF for a while and back on.
Think you'll have to check a lot of things possible with water like that. Can it drip out at all? Is floor inside wet still on passenger's floor from this or never A/C normal water made or seen?


Not sure how but expansion valve is possibly now off or not able to do its job properly.


? Why? Some can do that from just being low on refrigerant but with this history all has to be checked out. Take pressures while working at what temp and RPM and post your results.


Expect something strange to be causing this,


T
(edit in) If this will work with NO cabin air filter try that. Some filter material when wet can become a total air restriction swelling up and doesn't just dry out)



(This post was edited by Tom Greenleaf on May 12, 2016, 2:47 AM)


Discretesignals
Ultimate Carjunky / Moderator
Discretesignals profile image

May 12, 2016, 4:45 AM

Post #3 of 3 (1498 views)
Re: AC Has Water In It Sign In

Unlikely to have water in the compressor. I suggest you take it to a shop that specializes in air conditioning or the dealer. If the evaporator is freezing up into a block of ice, the evaporator temperature sensor or its circuit has an issue. The sensor measures the surface temperature of the evaporator core and is designed to prevent the evaporator from freezing by disengaging the compressor clutch. Don't be messing with refrigerant if you don't have the equipment or knowledge.





Since we volunteer our time and knowledge, we ask for you to please follow up when a problem is resolved.

(This post was edited by Discretesignals on May 12, 2016, 4:45 AM)






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