Go Back   DIY Chatroom Home Improvement Forum > Home Improvement > HVAC

CLICK HERE AND JOIN OUR COMMUNITY TODAY...IT'S FREE!

Reply
 
Thread Tools Search this Thread Display Modes
Old 01-06-2010, 11:51 AM   #16
Newbie
 
Join Date: Jan 2010
Posts: 28
Rewards Points: 25
Default

HELP: Lennox C33-36C-2F leaking water


The big black rubber tubing that is capped at the end with the white piece? Do I just try to pry it off then? And how do I go about cleaning it?

Yes, I did order a Aprilaire replacement part. Local Lennox dealer wanted $42 for a Lennox part.

hamproof is offline   Reply With Quote
Old 01-06-2010, 12:08 PM   #17
An old Tradesmen
 
Join Date: Oct 2008
Location: PA
Posts: 25,497
Rewards Points: 2,678
Default

HELP: Lennox C33-36C-2F leaking water


No. The PVC. It has a u shape in it.
beenthere is offline   Reply With Quote
Old 01-06-2010, 12:28 PM   #18
Newbie
 
Join Date: Jan 2010
Posts: 28
Rewards Points: 25
Default

HELP: Lennox C33-36C-2F leaking water


I did pour water from where the humidifier drains and I didn't notice any water backing up. Granted I maybe did a 1/2liter of water and not a whole bucket. I'll try to pour more water and see if it drains properly into the drain.

But if I do need to clean it, how do I do it? I would rather not cut the pipe off. Just use CLR or something similar?
hamproof is offline   Reply With Quote
Old 01-06-2010, 12:35 PM   #19
An old Tradesmen
 
Join Date: Oct 2008
Location: PA
Posts: 25,497
Rewards Points: 2,678
Default

HELP: Lennox C33-36C-2F leaking water


Probably have to cut pipe open. Since they didn't allow for it to be cleaned.
beenthere is offline   Reply With Quote
Old 01-14-2010, 10:34 AM   #20
Newbie
 
Join Date: Jan 2010
Posts: 28
Rewards Points: 25
Default

HELP: Lennox C33-36C-2F leaking water


I got a replacement Aprilaire water collection part and installed it. Turn on the humidifier and within minutes it was apparent where the leak is. Previously, I had to wait about 1/2hr before any water sign shows up.

So, it turns out it is leaking at the PVC exhaust side going out the house (see attached photo).

Also, I had previously mentioned that it is also leaking through the seams and water gets collected on top of the air filter panel area.

Well, looking carefully this time, I believe it is leaking through the rubber tube that is capped at the end (white piece). This same rubber tube is connected to the PVC exhaust side which I mentioned is leaking as well.

What should I do next? Water is suppose to be collected into that little black box on the right side of the HVAC which then goes to the drain. Should I investigate more, or fix the PVC tubing first? How to fix the PVC? Use some epoxy? Or cut it out and replace? I believe the leak is from the joints between the PVC (curve elbow and straight).

Thanks.
Attached Thumbnails
HELP: Lennox C33-36C-2F leaking water-img_0487-1-.jpg   HELP: Lennox C33-36C-2F leaking water-img_2167.jpg  
hamproof is offline   Reply With Quote
Old 01-14-2010, 12:44 PM   #21
An old Tradesmen
 
Join Date: Oct 2008
Location: PA
Posts: 25,497
Rewards Points: 2,678
Default

HELP: Lennox C33-36C-2F leaking water


If the humidifier is leaking through a 2" PVC furnace exhaust pipe. then something isn't piped right. And you got a restriction somewhere.

Post a wider angle pic of your piping. And mark which pipe is leaking. And which pipes come from where.

Also, I don't see a pipe clamp on teh one connection where it should be.
beenthere is offline   Reply With Quote
Old 01-27-2010, 07:53 AM   #22
Newbie
 
Join Date: Jan 2010
Posts: 28
Rewards Points: 25
Default

HELP: Lennox C33-36C-2F leaking water


Sorry for the delay. Here are some new photos. The last photo shows where the leak is (arrow).

Shouldn't the water be collected on the black tube running vertical on the right side to the collection box on the outer right side?

Thanks.
Attached Thumbnails
HELP: Lennox C33-36C-2F leaking water-img_2191.jpg   HELP: Lennox C33-36C-2F leaking water-img_2192.jpg   HELP: Lennox C33-36C-2F leaking water-img_2193.jpg   HELP: Lennox C33-36C-2F leaking water-img_2194.jpg  
hamproof is offline   Reply With Quote
Old 01-27-2010, 07:58 AM   #23
An old Tradesmen
 
Join Date: Oct 2008
Location: PA
Posts: 25,497
Rewards Points: 2,678
Default

HELP: Lennox C33-36C-2F leaking water


Looks like the PVC is pushing down on the furnace exhaust(exhaust is supporting PVC).
It shouldn't. How is the PVC supported?
beenthere is offline   Reply With Quote
Old 01-27-2010, 09:37 PM   #24
Member
 
Join Date: Oct 2009
Location: Nebraska
Posts: 2,362
Rewards Points: 1,000
Default

HELP: Lennox C33-36C-2F leaking water


You'll need to buy the black plastic part in the furnace that the PVC glues onto unless you have a pipe hog laying around the house. Humidifier doesn't have anything to do with that leak.
Marty S. is offline   Reply With Quote
Old 01-27-2010, 09:49 PM   #25
Newbie
 
Join Date: Jan 2010
Posts: 28
Rewards Points: 25
Default

HELP: Lennox C33-36C-2F leaking water


beenthere - I haven't had a chance to take a photo of how it is attached. I will tomorrow.

marty - The humidifier has not been for a few months now. So, no wetness. But whenever I attempt to fix it (new filter, new troth etc) and turn it on, within 10mins or so, there's water accumulation on the floor and the last time I tried this, I manage to see it dripping from where I indicated.

I think it is related to the humidifier.
hamproof is offline   Reply With Quote
Old 01-27-2010, 09:56 PM   #26
Member
 
Join Date: Oct 2009
Location: Nebraska
Posts: 2,362
Rewards Points: 1,000
Default

HELP: Lennox C33-36C-2F leaking water


That is the exhaust pipe for your furnace. The humidifier isn't connected to it in any way. The water has to be traveling from the humidifier and dripping on the pipe then.
Marty S. is offline   Reply With Quote
Old 01-27-2010, 10:08 PM   #27
Newbie
 
Join Date: Jan 2010
Posts: 28
Rewards Points: 25
Default

HELP: Lennox C33-36C-2F leaking water


Is it possible the moisture from the humidifier causes excessive condensation due to the heat and this condensation/water is the cause of leak? Is the water from the exhaust going through the same pipe as the condensation water from the humidifier?

Not sure if I'm wording it right. But it seem to me as the water flows through the filter element, some of it gets evaporated and flows through the ducts but some of it will condensate and gets collected in the a-coil pan. But looking at how the piping is, the water from the a-coil pan should just go through the small PVC pipes and not the black tube.

Maybe there's a crack in the a-coil pan or the water overflows from the pan. If so, where does this water go to?

Thanks

Last edited by hamproof; 01-27-2010 at 10:14 PM.
hamproof is offline   Reply With Quote
Old 01-27-2010, 10:49 PM   #28
Member
 
Join Date: Oct 2009
Location: Nebraska
Posts: 2,362
Rewards Points: 1,000
Default

HELP: Lennox C33-36C-2F leaking water


Quote:
Originally Posted by hamproof View Post
Is it possible the moisture from the humidifier causes excessive condensation due to the heat and this condensation/water is the cause of leak? Is the water from the exhaust going through the same pipe as the condensation water from the humidifier?

Not sure if I'm wording it right. But it seem to me as the water flows through the filter element, some of it gets evaporated and flows through the ducts but some of it will condensate and gets collected in the a-coil pan. But looking at how the piping is, the water from the a-coil pan should just go through the small PVC pipes and not the black tube.

Maybe there's a crack in the a-coil pan or the water overflows from the pan. If so, where does this water go to?

Thanks
The hot air from the furnace evaporates water off of the humidifier pad, not condenses it. The exhause pipe water is seperated from the humidifier air by a steel heat exchanger so it can not come back through that way.

The way your coil and humidifier are piped a plugged line will make the water back up into the coil pan and with nowhere to go it will overflow onto the furnace. Should be no water in the coil pan unless the AC is running so if you have water there then the 3/4" pipe is plugged enough it cant keep up with the humidifier output. Cut the 3/4" lines and clean them out from one end to the other.
Marty S. is offline   Reply With Quote
Old 01-29-2010, 10:23 AM   #29
Newbie
 
Join Date: Jan 2010
Posts: 28
Rewards Points: 25
Default

HELP: Lennox C33-36C-2F leaking water


I turned on the humidifier again today and made sure I observed where the first drop of water came from. Here's what I discovered.

Prior to turning on, I checked inside the A-coil pan and it was dry. Everything else was dry. I turn it on for 5 mins and everything seem normal. I turned off the humidifier only and opened up the panel filter, peek inside the ducts and notice the pan has water. Not evenly filled but rather more towards me (where the outlet is). I put it all back and turn the humidifier back on again. After giving it another 5 mins, I peek inside and notice now the far end of the pan has water, but not enough to overflow. Put it back and waited. Now I hear a dripping sound of water hitting the steel panels. Sure enough water started to seep out on the side of the black tube and also on the outside (the PVC pipe I posted earlier).

I guess there's indeed a restriction as both the humidifier outlet and a-pan outlet are inter-connected and it backing up into the a-pan itself (seeing the water is filling up in the a-pan gradually away from the outlet).

What I don't understand is, the a-pan never overflowed. Perhaps there's a crack? I can't see very well with the coil on top of it. Also, if it is dripping below the a-pan, what's underneath it? How does it get into the black hose?

The black hose should have proper drainage also. Why doesn't water gets collected in the outside box? I remove the rubber grommet and there's water in there.

I guess I really have to cut it apart now and maybe replace the pipes. Perhaps it is a good idea to pipe the 2 separately?

Also, how can I determine if the pan is leaking or cracked??

Thanks.
Attached Thumbnails
HELP: Lennox C33-36C-2F leaking water-img_2209-copy.jpg   HELP: Lennox C33-36C-2F leaking water-img_2205.jpg  
hamproof is offline   Reply With Quote
Old 01-29-2010, 09:07 PM   #30
Member
 
Join Date: Oct 2009
Location: Nebraska
Posts: 2,362
Rewards Points: 1,000
Default

HELP: Lennox C33-36C-2F leaking water


Moisture is a byproduct of combustion. Your flue gasses going out the 2" pvc are cool enough that the water actually condenses in the pipe and flows back through the black rubber hose in the last picture. From there it goes through the black box, which is a trap, then out the drain from the black box. Humidifer water or AC drain pan leaks cant get in any of that but it could follow sheet metal and drip on the outside of the pipes.

I'd seperate and clean the humidifier and AC coil drain lines to start. Then you can then plug the AC drain line from the bottom and fill the pan with food coloring and water and check for leaks the next day. A cracked pan will usually leak water into the furnace cabinet.The real problem is probably nothing more then a gunk build up in the 3/4" pvc though.

Marty S. is offline   Reply With Quote
Reply


Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off


Similar Threads
Thread Thread Starter Forum Replies Last Post
lennox elite furnace leaking water outboardhuy HVAC 10 09-24-2011 10:43 AM
Water softener leak - how do I set it to bypass? Cylanth Plumbing 4 07-21-2010 09:24 PM
Water heater keeps leaking out of TPR valve knac1234 Plumbing 10 08-14-2009 08:08 PM
low hot water pressure angus242 Plumbing 10 01-08-2009 11:41 AM
Testing 12 year old hot water expansion tank? DJfixer Plumbing 2 01-01-2009 08:09 AM




Top of Page | View New Posts

Copyright © 2003-2014 Escalate Media. All Rights Reserved.