Question about Heating & Cooling
This is complicated, as you know condensation can not be avoided when cold air comes in contact with
hot humid air. Here is what I would try. You have to gain access to your evap coil. Which means tearing into the sheet metal cover. The updraft A coil sits in a plastic drain pan which is leaking or it is over full of condensation water, spilling down the inside wall due to fan/air press, it's not draining proper due to rust or dust/dirt/old crud that just gets in there. Hot humid air is mixing with the cold air in the area of your copper pipes and drain going into the evap. causing some condensation out side the box. Be sure that your suction line is insulated good also. You will need some good heavy sheet plastic, (if you have ever had a car door apart you have had to deal with a similar plastic there). You will have to glue this plastic on to the a coil in this area, it will give a wall of insulation between the coil and the metal wall cutting down on the amount of warn/cold air mix. Also gives a you a splash guard for water to run down into the drip pan. Now you have to clean the pan and most likely rebuild the area around the pvc drain pipe (most times it will be cracked in this area now due to age, & hot/cold/hot/cold - a good silicone or stuff called GOOP works fine to fix the drain and to glue the plastic cover in place. You will also need some rubberized cork or a good tar puddy. OK, get out your tools, get a jug of ice tea, turn that a/c off, get out there and get busy. No talking - put the call phone away, no sooner than you get into it, somebody will call and distract you making you wait another day.
Posted on Jul 13, 2009
One. Take a shop vac and clean out the condensate drain line. It may be draining slowly causing water to lift from the drain and re-circulate. Two. Check for air leaks from any duct especially the return duct. Three. Remove the blower motor and clean the squirrel cage blades of mold,mildew and dust particles. Four. While Trane air handlers are sealed well they can still leak air. Seal all panels with hvac metal tape. Five. Go ahead and insulate the unit with styrofoam or ductboard. Six. If you have not had a evaporator coil cleaning done do that also.Eight years is a long time without a coil cleaning. No matter how well you maintain your filters lint and dust gets past them and lodge in the coil causing reduced airflow that causes increased condensation.
Posted on Jul 12, 2009
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Posted on Jan 02, 2017
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