HVAC (Condensate Drains)

This video will show you a very simple way to clean the condensate drain on your air conditioner. IMPORTANT: BE SURE TO USE A VACUUM CLEANER THAT SPECIFIES THAT IT’S A WET/DRY VACUUM CLEANER.

25 COMMENTS

  1. @michaelobringer I don’t know what could have suddenly caused your air conditioner to stop producing condensate. I rather doubt that the bleach was the reason. Bleach isn’t the best choice of drain cleaner. It can be hard on the coils.

  2. @Poohmic If you have a condensate pump in you condensate line then you’ll want to take apart the condensate pump for cleaning. The pump is going to be located somewhere in you condensate drain, probably near the air handler.

  3. Hi Dr. Z. Thanks for the video. I have also seen videos of pouring bleach done the clean out of the condensate drain. So I took 1 ounce of bleach and 16 ounces of water and poured it down mine. A few hours later I noticed that the air was not cooling the house and that the condensate was not dripping. I think preceded to use the wet vac and suck it all out. I got some out and it smelled like bleach. Still not getting any dripping. What do you think may have happened? It dripped before.

  4. Where is the condensation pump located. I clean out line an condensation still flowing out of line I have put a pan underneath to capture waster

  5. @KiaraRawks You might want to check the air filter to be sure that it’s clean. Then if you’re getting air flow you might have a refrigerant leak thus causing the evaporator coil to freeze up.

  6. @DrZarkloff Actually, i went into the air vent in the hall and looked up in it and it needed a good cleaning but after getting most of the dust/lent off of the vents its still not clean (it’s like really stuck) and when cut on, it freezes really fast. Does this mean it needs more freon whether or not it’s cleaned perfectly?

  7. @KiaraRawks If the condensate pump is full and the pump isn’t pumping it out then you have a problem with the condensate pump.

  8. I don’t think my AC has a condensate drain. Outside there is a white tube/pipe but it has a power/electrical switch attached to it? We haven’t had cool air in over a week, what can we do? Also we have a DiversiTech CP-22 Automatic Condensate Pump inside by the internal ac unit. It’s on but not “running” because no water is being pumped into it.

  9. It’s late at the moment, but when the sun comes up tomorrow, I’ll take photos of the outside and the inside pump and upload them to a video and hopefully you can help me? We haven’t had this unit long (maybe a yr or a yr and a half) and just had to spend almost 1,000 $ to get the car fixed so saving as much money is a priority here. I’m already in possession of wet-vac so no problem there.

  10. Hi Dr. I thank you for taking the time to make this video. I have already taken a shop vac to the drain and had just a cup or two of fluid come out but my unit is still leaking when I turn it on. How else can I drain the pipe, if that’s the problem… There is a plug on the top of the unit, can I open that up and maybe blow or suck at that point?

  11. Thank you SO MUCH for this video!!! Sadly I never would have thought to use a shop vac on that -.- Hopefully my leaking issue will go away now!!!

  12. Please help, I’ve noticed we have a strong rush of cold air coming from the sheet metal cavity where the insulated copper tubing exits the evaporator coil. The rubber fitting for the cavity looks to be kind of dangling off and around the copper tubing. I’ve used some sheet metal tape to seal it off as much as possible (over the rubber fitting) but now there’s a small amount of condensation dripping from the area. Payne PG8M

    Thanks!

  13. @pivotmaster102 The drain comes out of the air handler. You might have to disconnect the drain pipe at the air handler to clean it. Sometimes the condensate drains into the sewer drain.

  14. I watched your video and I’m ready to attack this problem but I can not for the life of me find the drain pipe …. I have a rheem rcva-3765as17… its located in a closet inside my home …(not an appartment & not in the attic). please help. I cant locate the pipe outside either. is it always near the outside unit?

  15. Hi Dr. – In my case the builders put the drain tube to come out under the deck of our house so I have to crawl under there to get to it. AND the only thing coming out of the wall is the tube itself, no PVC pipe – so how do I use the dry vac with its wide tube to suck out the guck from the small tube? Thank you!!

  16. Hi Dr. – In my case the builders put the drain tube under the deck of our house so I have to crawl under there to get to it. AND the only thing coming out of the wall is the tube itself, no PVC pipe – so how do I use the dry vac with its wide tube to suck out the guck from the small tube? Thank you!!

  17. Hi Dr. – In my case the builders put the drain tube under the deck of our house so I have to crawl under there to get to it. AND the only thing coming out of the wall is the tube itself, no PVC pipe – so how do I use the dry vac with its wide tube to suck out the guck from the small tube? Thank you!!

  18. DR. i have a split ac unit in my room and recently i noticed water dripping from it, do u think it is a drain blockage issue if so how do i unclog it ang where is this drain located. is this a diy project or do i have to call someone? the model of my ac is mitsubishi mr. slim ms09tw. thanks

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