Recent Topics
Who else rides in winter when able?
by LoneRanger
11/28/14 09:40 AM
Alignment question re Japanese cars vs American
by edwardh1
11/28/14 09:36 AM
PYB $2.99/Qt @ TSC - Black Friday
by meborder
11/28/14 08:48 AM
Saab Red Coolant Options?
by ET16
11/28/14 08:16 AM
2005 Saab 9-5 Arc Brake Options?
by ET16
11/28/14 08:06 AM
gas shutoff valve for Airens snowblower
by Donald
11/28/14 07:58 AM
I miss Ma's Pasta!
by Char Baby
11/28/14 07:54 AM
Are there differences in alignment equip/services
by BobsArmory
11/28/14 07:20 AM
Mazda 247 forums?
by Eddie
11/28/14 06:55 AM
Suggestions for surround repair
by mjoekingz28
11/28/14 04:29 AM
GL-4 Substitute?
by Ducked
11/28/14 04:15 AM
Nissan 510 manuals
by Shannow
11/28/14 01:53 AM
Newest Members
GON, Jo5eph, Kernel, EdBurns, wolf9832
52014 Registered Users
Who's Online
69 registered (AITG, 4wheeldog, 2010_FX4, Best F100, bigt61, Astro14, 9 invisible), 1479 Guests and 186 Spiders online.
Key: Admin, Global Mod, Mod
Forum Stats
52014 Members
66 Forums
222704 Topics
3525698 Posts

Max Online: 2862 @ 07/07/14 03:10 PM
Donate to BITOG
Topic Options
#3372743 - 05/15/14 06:20 PM Furnace Condensate Line Clogged
JerryBob Offline


Registered: 04/11/13
Posts: 508
Loc: Washington, DC
Does anyone know how and where to unclog a condensate line on a Carrier furnace (circa 2010)? The unit has started creating puddles since I've turned on the AC.

The photo below shows where I think it is, but I am not sure. Does the black corrugated tube on the left that goes into the white housing (the area with all the tags hanging off of them) need to come off and flushed out somehow?

I think the leak is coming from the white PVC drain on the extreme lower right. I made sure that the piece going to the floor drain is not clogged, so I think the clog is somewhere within the unit.

Any advice to save a service call would be greatly appreciated.



_________________________
2002 Honda Odyssey TGMO 0w20 M1-104 Filter
2011 Toyota Tacoma TGMO 0w20 M1-102 Filter

Top
#3372762 - 05/15/14 06:54 PM Re: Furnace Condensate Line Clogged [Re: JerryBob]
Corvette Owner Offline


Registered: 01/22/03
Posts: 1623
Loc: Waldorf, Maryland
Can you use air pressure with a rag (to seal one end) to blow out line? That's how I clear mine.


Edited by Corvette Owner (05/15/14 07:08 PM)
_________________________
Vehicles:
98 Corvette
06 Murano
96 Chevy Van (Custom Conversion)
14 Chevy Impala
10 Starcraft Boat
13 Buick Enclave

Top
#3372768 - 05/15/14 07:18 PM Re: Furnace Condensate Line Clogged [Re: JerryBob]
laserred96gt Offline


Registered: 03/03/13
Posts: 458
Loc: Florida
What I see in the pics is your gas line, PVC drain pipe connects to your evaporator coil which is probably on top of you furnace. There should be a service port ( where you can pour vinegar to help keep the drain clean, if they even installed one ) you can try to gently blow it out, or go outside find where the drain comes out and try to vacuum it. Im surprised the float switch hasn't tripped, or if it even has one.


Edited by laserred96gt (05/15/14 07:22 PM)
_________________________
96 Mustang GT 4.6, Maxlife 5w30.
95 Linconl Town Car 4.6 150k
04 E150 Cargo Van 4.6 181k
11 Camry LE, 2.5 35k Synpower 0w20.

Top
#3372773 - 05/15/14 07:30 PM Re: Furnace Condensate Line Clogged [Re: JerryBob]
bepperb Offline


Registered: 01/10/08
Posts: 4822
Loc: Milwaukee, WI
Those black tubes are for condensate from the heat exchanger. Look for something above the furnace itself. Also, I see the pvc pipe. Don't be afraid to remove the panel below the one you've removed (with the little window to view the diagnostic led), though it will have a switch and the furnace won't run with that one removed.
_________________________
2004 Highlander 2.4
2011 Toyota Sienna 3.5
Recently Gone:
2006 Accord 2.4l K24A8
1993 Kawi EX 500

Top
#3372777 - 05/15/14 07:37 PM Re: Furnace Condensate Line Clogged [Re: JerryBob]
JC1 Offline


Registered: 11/29/08
Posts: 700
Loc: Oshawa, Ontario Canada
Originally Posted By: JerryBob
Does anyone know how and where to unclog a condensate line on a Carrier furnace (circa 2010)? The unit has started creating puddles since I've turned on the AC.

The photo below shows where I think it is, but I am not sure. Does the black corrugated tube on the left that goes into the white housing (the area with all the tags hanging off of them) need to come off and flushed out somehow?

I think the leak is coming from the white PVC drain on the extreme lower right. I made sure that the piece going to the floor drain is not clogged, so I think the clog is somewhere within the unit.

Any advice to save a service call would be greatly appreciated.



Jerrybob,

Your condensate trap is that white box with the two black hoses in it. It gets all gunked up with crud. You'll need to remove the lower door to get it out. There are two tabs that you squeeze on each side and pull the trap up. You can rinse it out with water from a tap or soak it in vinegar for a while.

Here is a link to the part.
http://www.repairclinic.com/PartDetail/Drain-Pan/319830402/2347566

I had a similar furnace. Just replaced it last December due to the heat exchangers rusting out.

Regards, JC.

Top
#3372779 - 05/15/14 07:37 PM Re: Furnace Condensate Line Clogged [Re: JerryBob]
marshall25 Offline


Registered: 07/10/04
Posts: 70
Loc: Indiana
If it's from the AC, your condensate pan on the coil is probably blocked, then over flowing and draining out through the furnace. Pull the cover off your A-coil and check it out.

Top
#3372802 - 05/15/14 08:14 PM Re: Furnace Condensate Line Clogged [Re: JerryBob]
Chris Meutsch Offline


Registered: 02/27/06
Posts: 1983
Loc: Cincinnati
My service tech pours bleach down the drain pipe coming straight from the A-coil every year and tells me to do it every 3 months to keep things clean. I never do, but never had a problem. I second what others have said, it's the coil pan drain.
_________________________
"Well they aren't doing it to be nice. They are doing it so they don't get sued when people get shrapnel in the face."
----silverrat, 10/6/14

Top
#3372847 - 05/15/14 09:16 PM Re: Furnace Condensate Line Clogged [Re: Chris Meutsch]
DSparks Online   content


Registered: 12/19/13
Posts: 308
Loc: Texas
Pvc fittings at very bottom left of the pic is the drain .....the evaporator sits in a pan and the water runs out of this drain to the outside...basically its plugged up with slime and crud.....2 ways to clean it...quick way is to blow air from outside and should clear it but will probably be temporary but will buy you some time...or take the lower panels and fittings apart and maybe remove coil and pan completely to clean it all real good....just depends how bad it is...

Top
#3373308 - 05/16/14 01:34 PM Re: Furnace Condensate Line Clogged [Re: JerryBob]
ironman_gq Offline


Registered: 04/30/14
Posts: 136
Loc: MN
Our HVAC tech uses compressed air to blow out the lines and clear the clogs, he then follows up by pouring bleach down the lines to kill the mold and crud that eventually clogs the lines.

Top