a/c freezing up at the unit

[warrington]

I have a home Trane A/C. It has had problems cooling. When I went into the attic and looked at it I found something interesting. On the side of the unit, From right to left, there was the extra drain pipe then primary condensation pipe, then a copper small tube with frozen condensation around it probably 2 inches in diameter, next to it was a large black rubber hose with the same Ice finding at the attachment site for the hose and the unit. Around the area on the unit, there noted to be some condensation on the side. The drip pan is empty and the drain pipes are clear. Any idea what might be causing the attachment sites of the copper ~1/4" tubing and the ~1 1/2" rubber hose to form ice at the attachment sites to the unit. Thanks for your help.

[Charles]

More than likely you are low on refrigerant (Freon). You need to turn your AC off and turn your fan to manual. This will defrost your pipes which needs to be done before an AC guy can diagnose properly.

[Brotherbill]

More than likely you are low on refrigerant (Freon). You need to turn your AC off and turn your fan to manual. This will defrost your pipes which needs to be done before an AC guy can diagnose properly.

Or a refrigerant leak coursing low freon.

[az2tx]

Like the guys said above, this can also happen if it is extremely humid and hot, like at the coast and the temp is set to low

[Goldeneagle]

Clogged up coils?

[Uncle Saggy]

Plugged filter, bad blower, plugged condenser, low on refrigerant

[Smokeater]

What BW just said...the coils have got to be clean to move as much air as possible. If it's been a while since your evaporator coils (indoor) have been checked/cleaned then gitterdun. Don't wanna go stuffin' freon in it when you don't need to...stuff's too expensive anyhow! Good Luck!

[Mike Murphey]

Check your air filters...low air flow is the culpret on a freezing coil....

[NMStickFlinger3]

Clogged coils and/or dirty filter!!!! Your larger copper pipe should always be very cold and form a little condensation, and should have some sort of insulation wrapping on it. the smaller copper pipe, should not be cold.

[Geezy Rider]

Every time it's happened to me it was because I was low on freon.

[whitetailfanatic]

all of the above, whats your location?
Several of us AC gurus on here!

[Uncle Saggy]

all of the above, whats your location?
Several of us AC gurus on here!

PM anyone of us and I think we can help

[bowhntrmatt]

Bout time you other AC guys checked in. I figure one of the above answers is correct.

[UncleFester]

More than likely you are low on refrigerant (Freon). You need to turn your AC off and turn your fan to manual. This will defrost your pipes which needs to be done before an AC guy can diagnose properly.

Nailed it!!!! A little freon will fix this up in a hurry!!!

[Red Wing R/C]

Sounds like you need an A/C service call.