Thank you for visiting our web site. Please contact your local independent Trane dealer for an onsite visit. He can diagnose the problem and recommend an appropriate solution. You can find him in the Yellow Pages under Air Conditioning Contractors with the Trane tradename or type in your zip code at our web site's Dealer Locator for a partial list of independent Trane dealers in your area. You can also call toll free, 866 438 2872, for a list of Trane Comfort Specialists in your area. I appreciate your contact.