my furnace is leaking water from the bottom i was told to check the drain pan?

Question

i do not see a drain pan but the hose were the water is suppose to drain out of is dry so i know it might be clog up how do i un clog my furnace or what do you think the problem is my unit is a condensing gas furnace

Answer 1

Well to start off with, this time of the year (at least in the US) you would be using the AC part of your HVAC unit and not the furnace. What has probably happened (as has happened to me various times over the years) is that the condensate from your unit (like you see dripping from underneath your car when using AC) is overflowing the drain pan due to the drain hose being clogged. This usually happens because of an accumulation of buildup of algae-type gunk. Most HVAC repairmen will force backpressure wherever the drain exits your house with a garden hose, but this makes a bit more of a wet mess to clean up. I have always just sucked out as much of the backed-up water as I could reach with a bulb syringe and then replaced it with some pure bleach. This will break up and dissolve the gunk that is backing you up (maybe not immediately), but you want to keep an eye on it and not let the now-bleachy water overflow again and ruin carpet or anything. Once it is clear, adding a little bleach to this line about once a month during the months you use the AC helps prevent this from happening to you again.

Answer 2

the ac condensate line is clogged, backed up or not working properly. A good HVAC tech can fix it in a jiffy it has putt water on the floor and crawl space huh? dont forget to dry it out

Answer 3

There is something else wrong. You would not get that much condensation from a gas furnace. You will get some but then it will evaporate from the heat put off by the furnace.

Answer 4

Look inside your plenum's, you should have a dehumidifier in there or a humidifier, the line for the drain may be plugged, simply unplug it.