I am having issues with water from the A/C spilling out from under my dash. I posted previously about the problem; I cleared the tubing and water was freely draining, however, the problem has come back. My questions are: Is there an issue with the A/C system causing excessive condensation, is this a common issue with Accords, and any suggestions to remedy the problem?

Thanks,
Rob C
2003 LX, 4-cyl, auto

 

Is the tube clogged again? You're certain it's water/condensation and not Coolant?

 

Coolant has a pretty distinctive smell; would you recognize it?

If you cleared the tube by blowing the crud back into the evaporator housing, it probably just worked it's way back into the drain tube. I'm not sure the best way to actually clear it OUT. Maybe open up the ventilation box under the dash? Go in thru the opening where you change the cabin air filter?

 

Perhaps you could find a drill bit that's just slightly smaller than the tube and run it in reverse to "auger" the stuff out

 

Thats not common on 03 models, i'll need to get under the dash of one and check that out. I seem to remember dealing with this once before... i'll have to get back to you.

 

On my way home last night, I heard the water "sloshing" into the fan, when making sharp turns. When I got home, I went under the dash, squeezed the tube a few times and water came out, at a steady stream, for about four minutes. When I squeezed the tube, it felt cold; I'm wondering if it is being clogged up with ice. I'm just baffled by the amount of water that is building up, after only running the a/c for a short while. The a/c blows very cold, so I doubt it is a charging issue. Again, thanks for the input.

Rob C
2003 LX, 4-cyl, auto

 

Did any crud come out or just water/ice?

If the AC is undercharged or the expansion valve is partly obstructed, the evaporator will operate at a lower temperature. But don't use that as an excuse to add refrigerant without measuring hi & lo pressures.

 

Jim,
Clean water was coming out of the tube. I do agree with you that there may be an issue with the evaporator getting too cold.

Rob C
2003 LX, 4-cyl, auto

 

Havethe AC diagnosed by someone with the right equipment. Not just a gauge& a bottle.

If the low-pressure side is too low, it operates at a lower temperature & ices up. The extra-cold is overa small portion of theevaporator, so the AC doesn't get more powerful when this happens.

Deciding whether it's undercharged as opposed to a clogged expansion valve isn't real easy with a simple gauge on a refrigerant bottle.

But first you should continue to check for crud & rule out the simple stuff. Actually finding a chunk of ice would be the proof to send it to an AC guy.