Defroster condensation

Tiny
MIKEYB74
  • MEMBER
  • 2007 HONDA FIT
  • 1.5L
  • 4 CYL
  • 2WD
  • MANUAL
  • 193,000 MILES
A/C compressor was replaced fourteen months ago. The A/C blows cold, and there is nothing unusual from the dash vents. It does sound like some sort of fan under the hood is kicking on and off pretty often.

Car has not overheated, has recent coolant flush. Oil is correct color. Not seeing window fogging in normal driving in dry conditions.

When I turn on the defroster on a hot humid night, I see colorless odorless moisture coming from the defroster vent. There is also condensation on the hoses around the A/C hoses under the hood.

Is this something I need to worry about, or just par for the course?

My concern is that there is not something major like a head gasket or heater core issue, since I also need to have a clutch issue fixed.
Saturday, August 4th, 2018 AT 11:01 AM

1 Reply

Tiny
STEVE W.
  • MECHANIC
  • 12,963 POSTS
Hot and humid will create a lot of moisture in the HVAC case. Look under the vehicle to be sure you see water dripping out of the case drain, other than that what you see is normal. It is the moisture condensing on the cold surfaces.
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Saturday, August 4th, 2018 AT 4:05 PM

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