HVAC systems drip water into condensate pans

“Yesterday my water sensor in my attic air handler went off I went to check it out and saw a tiny bit of residual water in my drain pan that looked like it was dripping out of the service door....I popped the door open and found a pool of water inside my air handler sitting on the bottom of the unit It was right next to the coil and it looked like it was getting passed the built in drain somehow The drain lines are completely clear, and I'm having zero issues with my unit otherwise The unit i”

“We have a freedom 80 furnace and what I believe is a Trane TXCO36C4HPC0 comfort coil sitting on top of the furnace. We noticed today that we had a significant amount of water dripping out of the bottom of the unit after the AC ran for awhile. AC does blow cold so that part is working. I verified my VCMA pump on the right hand side works after pouring water in it. When looking under the unit I can see a drip near the rear of the unit; however, when looking where the blower motor is with the contr”

“There is water dripping from underneath the unit(multiple spots) into the emergency drain pan. Im guessing the coils need to be cleaned inside the unit? If not, what is causing this? Any link to a youtube DIY video would be greatly appreciated. submitted by /u/Suspicious-Ad-1409 [link] [comments]”

“Is ALL water supposed to flow through the PVC pipe and be shot out through the pump? submitted by /u/jko1701284 [link] [comments]”

“The inducer motor housing unit (red marker if helpful at all) seems to have water stuck in there. I turn the heat on and the fan will turn but slowly and makes a gurgling sound. The drain (bottom) isn’t clogged and the condensate pump is in working order. Any ideas as to why it won’t drain and how to force a drain in hopes that resolves the issue? Thanks in advance. submitted by /u/SevenCheetahs [link] [comments]”

“Probably a dumb question. Just had a tech replace the evaporator coil. After he left I noticed a gap where these portions of pipes connect. I tried to reconnect but I’m not sure if it’s fully sealed or tbh what this pipe fully does. Anything of concern? submitted by /u/TuxTheAce [link] [comments]”

“Is this normal/safe? I recently had a coil replaced on my unit and noticed these wires were out afterward. Also, there’s a small amount of water below the unit. I’m not sure if I should call my technician or not. submitted by /u/Eterna-infinita [link] [comments]”

“I live in an apartment complex in Florida, & in the summer I tend to always have issues with my AC unit pan or safety switch tube filling up with water & the unit shutting off. I've read if you flush the unit with vinegar monthly, it can help reduce buildup & blockage. For my unit - where should I pour vinegar to keep the unit clean? I don't know anything about AC units - I just know there's the pan under the coils, the safety switch tube, & then a second tube to the”

“How dangerous is this and how concerned should I be? submitted by /u/ZoopSoul [link] [comments]”

“My line seems to have frost on it and making an strange hissing sound. I live in an apartment. Any notes I should tell the landlord for proper fix? submitted by /u/Intrepid_Excuse_5442 [link] [comments]”

“Follow the water back. Looks like it coming from AC unit and not water heater”

“My garage heater drips from what I assume is condensation in the winter. When I originally installed it there was a pipe kit that was like another 400 dollars which we just didn’t have the budget for at the time. Now I’m kicking myself thinking that is what may be causing our issues. On cold / windy days this heater will drip (see the first picture for residue). I was thinking if either replacing the final external pipe or adding some sort of wrapped insulation around the pipe but I’m not sure i”

“Even though I just had the coil and compressor replaced and there was some dripping out the bottom, I believe this water was collecting even before because I’d notice this dip and just figured “that’s odd”, but today I gave it a little nudged and it’s water logged. This is a downdraft system so all the ducts are below the floor and there is one intake in the room where the unit is. Do I have to disassemble this to get the water out effectively? What about the insulation? If it’s wet, replace it?”

“OP, is there something inside that pvc that’s sealing around the condensate line? I see something black.”

submitted by /u/mickyhunt [link] [comments]

“My mom had her furnace worked on a few days ago. Now this thing next to it is leaking water. What is happening and is it a serious problem?? submitted by /u/tinytartarsauce [link] [comments]”

“On Daikin ftxb24axvju - getting steady drip above blower wheel. Drain pan not clogged. Any ideas? submitted by /u/No_Gazelle3980 [link] [comments]”

“I had some air handler issues that resulted in the pan filling with water multiple times this summer. The issue has been fixed but I noticed a little bit of rust on the pan. I wasn’t thinking of using flex seal or something similar to avoid the pan leaking or having to replace the pan completely. Thoughts? submitted by /u/Ok_Size9573 [link] [comments]”

“I’ve babied this thing, and completely wet vacuumed all of the scale last year. Inside is the clean for being installed in 2007. Replaced both thermostats and elements. Works great. All of a sudden it’s leaking from a seal or something where the drain is. Is this fixable? It’s leaking pretty bad so I’d like to get what I need tomorrow and get this thing patched up. Thanks all! submitted by /u/xChillyPhilx [link] [comments]”

“Hey all, Had a technician come for another issue and he noticed that we had no P trap for the furnace condensation drainage. He advised that a DIY fix could look something like this, which is what I did. Does this hold up, or am I cray cray and need a technician to come for an actual trap installation? submitted by /u/sloking_ [link] [comments]”

“Do I just need to replace the exhaust fan? There is also a condensation leak, I’ll try to post a pic in comments. submitted by /u/markjack101 [link] [comments]”

“This part of my ac system has been dripping condensation. What do I need to buy to stop it from dripping on to my things in this closet submitted by /u/sneschalmers34 [link] [comments]”

“2 months ago I noticed that the copper pipe was dripping but didn’t think anything of it because I thought it was some kind of overflow pipe and it was just doing its job. Recently I noticed that a small bottom portion of the tank and both ends of the copper piper are rusting suggesting that the leak is more consistent than I thought. I want to tell the landlord about this, but my wife thinks we have been bothering them too much, concerned that they may tell us to take everything out of the base”

“Hello HVAC experts and enthusiasts! I'm just a newbie homeowner hoping to pick your brains on what might be the best next steps in my troubleshooting process. Our drain pan has been filling up recently where I've had to shop vac the standing water twice in the 2 weeks so I've been trying to determine the root cause and apply a fix (or call a service if necessary). Some background/info that may be helpful: This is a relatively new build (Completed ~December of 2024); we are the first”

“Living in ga and summer has been brutal. Checked ac unit and saw some rust in the pan submitted by /u/gassynotclassy [link] [comments]”

“Ok, help me HVAC experts! I found water in the drip pan last week. I determined there was condensation that had made its way out of the condensate pan (obviously lol). When I found it I first checked the drain, no clogs and draining fine. Then I pulled the secondary plug for the condensate pan inside the unit, nothing which confirmed drain was working. Tech came and took the cover off, filled the condensate pan with water to the brim, no leaks so no crack in the pan. Any ideas? submitted b”

“Water leaking inside the old furnace when heat is turned on (literally minutes after). I have a tech coming and taking a look at it tmr. I wanted to know what I can do before they come? I want to put a cup inside but I feel like I might just make it worse if it gets overfilled. submitted by /u/ggtsyc [link] [comments]”

“Is this normal and I just need a condensate pump instead of a bucket below that line, or a sign that something isn’t quite right? Located in CT. Thanks in advance for any advice submitted by /u/cracksmack85 [link] [comments]”

“When i went to change the filter on this, i saw some water on the floor at the base of the unit. Not a large about maybe like a glassful. It’s a EBU2X36BA1 unit, attached two pictures just want to make sure I open the right drain plug to see if it’s clogged. Thanks! submitted by /u/mikenotjef [link] [comments]”

“Hello, I'm sure this is a common question but I have a furnace that is leaking, at the back outside of the furnace when we run the heat it was completely fine during the summer months. I have cleaned the line and hose and put air into them. I know there's some water and a little bit of rust at the bottom of the compartment. I have a feeling this might be a broken pan or may have cracks if you look at the pictures you can see some water. Is there any way to run water through the pan to se”

“EDIT: Adding a vid because I don’t think I explained how bad the setup looks. The wood around the HVAC is visibly wet, the metal is heavily rusted/corroded, water is actively dripping, and there’s a plastic bottle/container being used as part of the condensate drainage setup. I’m also emptying a tote of water approximately every other day. I don’t know if the smell is mold, so I’m not claiming that it is, but there’s now a definite damp/musty smell that wasn’t there before. Also wondering what m”

“The drain is right here but is it normal to have a little bit of water on the inside? Inside the air handler behind the red plug. Maybe 1/8 of an inch or something along those lines? I’m trying to figure out why the pvc pipe is collecting water. They added foam to “help” but my old one never had the same issue, pvc shouldn’t condensate with the water off the coil, at least i wouldn’t think so. submitted by /u/Foreign-Macaroon6179 [link] [comments]”

“When I replaced the filters recently, they had rust stains on them like in the picture. Is this normal, or does it point to a potential moisture issue that I should have checked out? submitted by /u/RedditUser3684 [link] [comments]”

“Hello! I live in an apartment complex, I’m wondering because this thing drips water at times and I don’t know why?? I asked the maintenance but they say it’s normal.. I’m no professional butttt I don’t think this is normal😂 submitted by /u/sagacious_artist [link] [comments]”

“From limited research, I’ve learned this my rear air conditioner unit. I noticed it dripping water after arriving home yesterday. I see there’s a drain plug, do I need to pull it to let it fully drain or is this functioning as it was intended? 2024 Wagoneer submitted by /u/MaximumAssistance18 [link] [comments]”

“Hello, The metal access panel in my bathroom ceiling has been dripping with water lately. So a couple of weeks ago I opened the access hatch to see what's going on and noticed that the drip pan below my air handler has water coming out of the corners. I thought it was peculiar that the pan isn't really a formed up-turned kind but instead just a flat metal sheet that is bolted to a steel frame above it with a gasket in between. I guess this is pretty common - though seems like it would be”

“What part is the copper piece with the round flat end and the smaller copper tube coming in and out? Is it normal for it to be wet? Noticed our carpet was wet so I cleaned the drain tube but notice this piece was wet. Im wondering now if it's leaking and causing too much drainage or if it really was just my drain tube being clogged. submitted by /u/khamrabaevite [link] [comments]”

“My air handler kicked off by the float switch. There is water in the drip pan but no noticeable leaks. I took both floats out and it's working fine. submitted by /u/Melodic-Presence-743 [link] [comments]”

“I have a small amount of surface rust from condensate or train dripping down the intake tube. Unit is 10 years old and the picture is after I cleaned it with some sanding, but am thinking about putting a small stainless steel tray in top to collect any small amounts that might drip in the future while still being very low profile to not impede airflow. Thoughts? Anyone else do this? submitted by /u/Masterful_muppet [link] [comments]”

“What could cause this suddenly? Moved in a month ago and only noticed water outside the furnace recently, although the inside is quite rusted. I tried turning the air flow down but it still blows out of the tray. Maybe the tray is not graded or draining properly? submitted by /u/OzpuzeAmbassador [link] [comments]”

“Water condensed into the pan, wouldn't drain, and overflowed down into the surrounding area (e.g carpet). I figured it was the (main) drain pipe, took it out, and noticed it was clogged at the p-trap. Did the contractor do it correctly? I am redoing the piping. Do I need to have that p-trap, or can I just do straight pipe with a slope? submitted by /u/neohanime [link] [comments]”

“How do I insulate the openings where the condensate pipes come out? It’s not a pipe leak. It’s sweating. The drain pan is not rusted through, and I currently have a foil pan under it. The HVAC guy said this is just how it is. I am not so sure. As long as I keep the foil pan under it, everything stays dry. submitted by /u/mosscc2018 [link] [comments]”

“This contraption will drip water after we run the AC for a while, was told by someone else that this is very shoddy work. My wife got this place before I met her and didn't know anyone to look at it before she got the place. Wondering what kind of payment we'd be looking at to fix this. I'm assuming its more difficult to figure out whats exactly wrong because you cant see inside and that leaves the quote up for debate? submitted by /u/StocktonSucks [link] [comments]”

“Hope someone can help me out here. My ac unit stopped working and I think it is due to the condensate pan being full and not draining. The black pan below the air handler is completely full of water. The condensate pvc line looks to have adequate downward slope. I looked inside the air handler and there is no water. See 1st picture with the rusted bottom. It looks like the water from the bottom black pan isn’t moving to the drain lines inside the air handler. Am I correct? If so, any ideas on ho”

“Everyone is confused in this thread. It’s the effect that AC and furnace condensate has on metal plumbing. It’s acidic and contains bacteria that create a biofilm. This causes the drain to rust out and the jelly stuff you’re seeing is bacteria build up.”

“Hi everyone, looking for some input. Houston, flat roof, gas furnace in an interior closet with B-vent going straight up through the roof. Found a droplet hanging off the seam of the 90° elbow inside the closet, with white mineral staining streaking down it, so it's been going on a while. Also water pooled on top of the furnace. Ruled out combustion condensate (furnace hasn't run since spring) and a clogged condensate drain (poured bleach a month ago, heard it run all the way to the sink”

“Any recommendations cleaning or just replacing the pipes, I recently installed the p trap myself I am not expert, the drop is about 5 degrees after the p trap and about 10 inches, any recommendations, I appreciate your help. Thanks submitted by /u/Technical_Cod_7 [link] [comments]”

“I have two units in my home, and I want to keep them performing at their best. I have a unit that, whenever it is running, I can hear water "dripping" from 20 feet away. I checked the P-trap, and I saw no water, so that tells me that the drain isn't clogged. I checked the pan underneath (gravity drain), and it is dry. So the only thing I can think of is that the pan is suffering a clog. So I opened the panel to check the pan, and I noticed the coils were rather dirty. And the last”

submitted by /u/Haunting-Berry-6365 [link] [comments]

“Hello AC pros. The drain line has been cleaned with nitrogen 3 times in the past 3 weeks. I had hired a local company (that I had used previously) for this. Last cleaning 4 days ago. Water in the pan again. What is best way to resolve this and have it drain properly rather than drip to the pan? Thank you for your help submitted by /u/Ret2030ire [link] [comments]”

“I had a little bit of water dripping down the water heater vent pipe and it looks like water has dried on the furnace one too submitted by /u/Terrible_Delivery716 [link] [comments]”

“Moved into this house that was a model home for 3 years. I noticed this condenser line is dripping water just outside the drain and there is some sort of black buildup but I don’t think it’s actually mold. I was thinking I just need to extend the pvc a bit to reach the drain fully. But am I overthinking? Why would they set it up like this? submitted by /u/RefuseOk5740 [link] [comments]”

“I have a Goodman air unit and evaporator coil that is dripping from the A-coil. The system is only a few months old and the coil has been replaced once already for the same issue. The tech came in and sprayed coil cleaner on the first coil 2 separate times as that was the advise from the manufacturer. They replaced it thinking it just had oil buildup (from the manufacturer) that couldn’t get removed. The second coil was cleaned off with acid cleaner before installing. That seemed to work but it”

“Bottom skinny piping is dripping a lot while the unit is running. Thought it was condensation, but after wiping off it drips just as fast. What is the pipe for? submitted by /u/TurtleDove96 [link] [comments]”

“As a first time home owner I’m looking for advice. I believe this is the ac condensation pipe based off of google. I live in Texas and with the 100 degree days I’m not too worried but this pipe has a constant water dripping from it. I bought the house a few months ago and due to personal reasons I just moved in. The dog was messing with the mud that was accumulating so I put these rocks down and this plastic splash block. The inspector already saw the crack below it so it’s not a new issue. The”

“Just curious if you guys have any tricks to remove and seal the ends of A frame coil loops.. 3yr old american standard heat pump roof top unit submitted by /u/fkcancer2008 [link] [comments]”

“Our AC has been smelling a little musty when it first kicks on. We live in a hot and humid area so we frequently have to run a shop vac on the condensate line with a little vinegar. I’m wondering if it could be the drip pan needing a good clean, but I can’t seem to find it. submitted by /u/sunshinelover321 [link] [comments]”

“How do I fix this, if needed. I am just worried it might get a hole eventually due to rust and damage my ceiling. Thoughts? submitted by /u/sanothimi [link] [comments]”

“I’ve been having this recurring issue the last two summers I owned this house. I live in Maryland, where we have hot humid summers, and the furnace is in the basement, where it’s much colder than the rest of the house. There are two floors above it, and high ceilings, so it’s a pretty long run. When I moved in, the furnace flue was much bigger - maybe 8” diameter. Because of the dripping water, we had a chimney person out to inspect the flue. They thought maybe the issue was the diameter was ove”