when my air exchange unit is on,it smells like old water,which it pushes all over my house. what do i do?

Question

i have cleaned all filters, but to no avail. this problem is always worse when it rains. is this a sewer problem, or an air duct problem? my house is only 4 yrs old.

there are two tubes that run from the uniy directly into the drainage system under the cement floor. unfortunately, i don`t know which is conected to the pan you are refering to. is it the section with two filters on a 45° or the section with one large filter?

Answer 1

The condensation pan is usually right under the coil which is supposed to move the water to a hole to drain. Very likely yours is stopped up and depending on how accessible may be rough to unstop.

If you can locate the pan but difficult to remove try using a turkey baster and using about 90% CClorox and 10% water squirt the solution in the pan and watch to see if anything happenes in about 30 min. If you see nothing has happened the drain is stopped up and may need a pipe snake to unstop. But sometimes the clorox will break the crud loose.

Answer 2

It sounds like the condensate pan is not draining completely. After running the air conditioner for about an hour, shut the unit down, remove the access panel & check for standing water. If so, the drain is blocked. Try to pour bleach directly into the drain area; if water is still standing, use a plumbing snake. If neither works, you may have to call a plumber. And you may have to replace the filter instead of just cleaning.

Answer 3

The condensate pan drain may be clogged and as a result water is ''standing'' in the pan.