Trane A/C A-coil rust

I have a 3 year old Trane XL14i. The evaporater coil / air handler is in the attic here in south Florida (fairly common). Now that it is cooler, I opened it up to clean the blower and just inspect everything. I removed the side panel to the air handler and the galvanized triangular panel on the A-coil. The bottom half of the A- coil sides are full of rust.
Anyway, the parts have a 10 year warranty, but labor was only 2 years. I fear the entire A-coil is going o rust away within a few years. Should I get it replaced now or wait until there is a cooling problem? Is there anyway I can stop the rust? I know enough about corrosion to know my "fix" could make things worse (ie., the copper coils could start to corrode instead of the steel).
Thanks in advance.
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On Mon, 26 Nov 2007 12:52:06 -0800 (PST), snipped-for-privacy@hboi.edu wrote:

Actually, your best bet would to be to call your Trane dealer, or another if you like and purchase a 10 yr Parts AND Labor warranty through Trane. Then when it goes bad (and something WILL go bad) you get it fixed totally free. Bubba
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Unfortunately it's normal for them to rust. If it's any consolation I've seen them rusting for years without much consequence. I suspect they are engineered with enough material so that they remain structurally sound.

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snipped-for-privacy@hboi.edu wrote:

You might check to be sure the water is not standing during the "off cycle." If water is allowed to stand to long, it will [over time] rust through. Although the drain pan(s) may be of 16 / 14 gauge, and have a long life with water standing in them, you will benefit greatly by insuring ALL of the condensate drains off during the off cycle.
--
Zyp



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YES, water is standing in the pan when the unit is off. I was there for the install and asked about the fact that the drain hole was a bit above the bottom of the drain pan and I was told that was to keep debris (rust flakes, dust, etc.) from clogging the line as it would drop to the bottom. The only easy way I can see to get more water to drain is to tilt the unit a few degrees. It is hanging from 4 chains, so I can raise 2 a bit without breaking any seals around the ducts (I think). However, I don't think I'd be able to get all the water out. Any suggestions?
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On Nov 29, 11:32 am, snipped-for-privacy@hboi.edu wrote:

It is always going to be wet. When ever it is running it will be generating water from evaporation. It's not going to dry out much between the times it is running.
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wrote:

The question I have is this.... Is the drain properly trapped in accordance with the manufacturers instructions??
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"I fear the entire A-coil is going o rust away within a few years." Don't fear that is what it supose to do, how do you expect them to sale you new one. Tony
Should I get it replaced now or wait until there is a cooling

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