Central air working OK, Getting mold and mildew due to high humidity. .

Try making sure the drain on the A/C coil pan and drain line is clear of all obstructions.

We just got a quote for a new central A/C unit for our 2-story, 2200 sq. ft. house and I don't know what the term "3-ton" refers to in the quote for a new Trane A/C system. Review this Air conditioner replacement (http://www.houstonairconditioners.net/air_conditioning_replacements.html) Can anyone tell me what it refers to? Thank you.

I get lots and lots of inquiries about water leaking from air conditioners and heat pumps. This is a very common problem that is easily solved. The way your air conditioner dries your house is by removing moisture. That moisture must go some where. The moisture is removed by condensing it on the cold refrigeration coils and letting it run down a drain pan.<a href="http://www.houstonairconditioners.net/>Furnace Replacement</a>
The problem is that dirt and crud will stop up the drain line and clog the pan. This will eventually happen to every system out there give it enough time.

I get lots and lots of inquiries about water leaking from air conditioners and heat pumps. This is a very common problem that is easily solved. The way your air conditioner dries your house is by removing moisture. That moisture must go some where. The moisture is removed by condensing it on the cold refrigeration coils and letting it run down a drain pan.Furnace Replacement ("http://www.houstonairconditioners.net/) The problem is that dirt and crud will stop up the drain line and clog the pan. This will eventually happen to every system out there give it enough time.