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Phil, Mechanical Engineer
Category: HVAC
Satisfied Customers: 6022
Experience:  Retired HVAC/ Electrical & Boiler contractor. Industrial
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The pan under the air handler is bone dry with dry sludge. I

Customer Question

The pan under the air handler is bone dry with dry sludge. I havent seen any water drip from pan to house exterior. What could be the problem?
Submitted: 1 year ago.
Category: HVAC
Expert:  airheatman replied 1 year ago.

Are you referring to the auxiliary pan under the air handler? And have you tried blowing out drain line?Also check and tell me if outdoor unit comes on.

Customer: replied 1 year ago.
I am referring to the large pan under air handler that catches condensation fro air handler and lets it drain to exterior of house.The drain line is open . Yes..outdoor unit comes on.
Expert:  airheatman replied 1 year ago.

1. Pan under unit should never have water in it.It is an overflow pan.

2.There should be a different drain connecting to the air handler that runs to a different location (usually with copper tubing)

3.Locate that drain and see if any water is coming out

Customer: replied 1 year ago.
There has always been water in pan. It drains out thru a pipe to exterior of house.
Expert:  airheatman replied 1 year ago.

There should not be water in pan.Does water just drain out of the coil fitting into the pan?

Next question is the ac cooling and running?