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I have water damage in my ceiling. I have chased the problem back to copper lines coming from the Carrier a/c unit in my attic. I have called a local service tech, but this has occured before and service men speak a different language. What is going on with my unit?

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Posted on Sep 02, 2008

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How large does the area of the space required to service an HVAC or water heating unit in the attic have to be?


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Aug 08, 2014 | Carrier Heating & Cooling

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We have a Carrier 25HBA unit and we've noticed a frost build up on the outside compressor, my husband turned the unit off and cleaned everything outside and up in the attic. It worked. No frost...


Hello
Frost or ice on the bigger outside copper line is a indicatin of possible low freon.Hopfully that is all it is.

It is also a possibility the compressor is getting ready to break,bad valves.

You will need a tech to come out and charge the system with freon.

Check your filter is clean and new first.

Sep 15, 2011 | Heating & Cooling

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I have 2 Carrier units, one for downstairs and another for upstairs. I think the blower unit must be in the attic. Do I have to go up into the attic to replace any filters? Do I need 2 EZ Flex FIlter...


You may or may not have to go into attic, depends if an additional filter system is installed. May have filter grille's install in ceiling, or wall. If no filter's on the interior, then there should be in the furnance or filter rack in the attic. Filters should be used for no more than 3 months without changing or cleaning if washable.

Aug 26, 2011 | Carrier 38CKC036 Air Conditioner

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I have a Carrier central air unit in the attic. There is water dripping through the ceiling. There is a problem with the internal drain pan, as the unit drips a LOT of water into the emergency pan. There...


The internal catch pan is very time consuming to replace, especially since it is located in the attic. But before you try that, have you checked to see if the drain line is clogged with algae and that it has the one inch to one foot drop you need for proper drainage? Has you house settled throwing the slope off?

If you live in the South algae growth can clog you drain line. I would disconnect the drain line (have a bucket handy) and see if it is clogged. If you have algai growth then you need to treat with bleach to kill it off. You might also want to run a drain snake through the rest of the line to make sure that it is clear.

Good luck!

Jun 05, 2011 | Carrier 38CKC060 Air Conditioner

1 Answer

We have a 1990 60,000 btu HVAC with the unit outside and the 2nd half in the attic. Water keeps accumulating in the attic below the attic unit and overflowing into the ceilings and wall. It cools fine...


Hi, this is a very easy problem to solve. The air handler and evaporator coil is in the attic and this is where the condensation collects in the pan. At some point on this pan is a 3/4" drain for this water to drain to the out side of the building. Its plugged up and running over onto the sheet rock causing all of this damage. Someone needs to get up to this unit with an air tank with nozzle that you can buy at a auto parts store that they fill with air to air up tires and blow out this line. You can walk the perimeter of the building and you will find this drain coming out the wall, it will either be white PVC or copper, a elbow that drains. The pan will need to be cleaned out after the drain is unplugged by flushing with water or use a brush and try and clean it up, what ever is easier to do. This is the only way to solve this as I have seen this happen so many, many times. Believe me, this will take care of this problem. Please don't forget to rate me and I know you will be kind. I will check back in with you and you can keep me posted. I wish you the best.
Sincerely,
Shastalaker7
A/C,

Aug 31, 2010 | Goodman Heating & Cooling

1 Answer

I have a Weather King AC/Furnace in the attic that's dripping water into the drain pan. When we purchased our new house it came with this unit and it never dripped ater. Now, the water is dripping towards...


I assume it is dripping water when the AC is running. If you look at the attic unit, there should be a PVC pipe running from the unit - probably an insulated PVC pipe. This pipe probably goes across the attic to the edge of the house and drains outside. The drain pan may also have a drain pipe, but the one on the AC unit is the issue, and is probably plugged. Go outside and see if you can locate the AC drain pipe. See if the ground is wet below the pipe and if water is steadily dripping from the pipe (with AC running). If the pipe and ground are dry, the pipe is plugged. If you have a wet/dry vac, try connecting it to the drain pipe outside to see if you can **** the pluggage out. If you can get it clear, water should start dripping out of the pipe. This same thing happened at our house. I decided to cut the pipe in the attic, and add in a PVC isolation valve, tee, and water hose connection with plug, so I can valve out the AC unit from the pipe, remove hose connection plug, and hook up a water hose and flush the line to outside. Lowe's sells all of the PVC pipe fittings. The water pressure from the hose will always flush out the algae and crud to the outside of the house. I can also remove the plug and pour a cup of bleach down the drain pipe every couple of months to keep algae growth in check. I also cut out the trap (u-leg) from pipe in the attic and purchased a ready made trap a Lowes (the contractor who built our house had made a lousy homemade trap). I purchased a few PVC elbows and installed the trap on the drain pipe outside. By the way, our AC drain pipe comes out of our wall outside and drains near our outside unit. Our secondary drain pan drain pipe comes out outside from an eave on the side of the house. I don't know what you drain line looks like (it may have a port to add bleach, or some cleanout provisions, maybe not). If you choose to modify/improve it, then make a sketch of it, go to Lowe's and get the PVC parts you need + PVC pipe primer and cement. PVC cement dries fast. Remember, the pipe must flow downhill from you AC attic unit. You can use a regular wood saw to cut the pipe. I hope this helps you. You need to keep the drain line clear as algae will continue to grow in it. Pouring bleach in the line every month or two helps. You also need to check maybe once a month that the line is draining properly (check to see if dripping outside). You can get some serious water damage to your ceilings if the water backs up and overflows. I discovered that our drain line was plugged just in time as our drain pan drain line was also partially plugged and drain pan was about to overflow.

May 08, 2010 | Weather King 12AJA4201AH Air Conditioner

2 Answers

Just purchased a home and was never told where the air filter is


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Jan 01, 2010 | Heating & Cooling

1 Answer

I have a unit in the attic that is installed in the attic horizontally. The condensation leaks out the unit into the overflow pan. I have had the drip pan replaced as it was cracked, the overflow line...


It sounds like to me that the leak is coming from inside the unit(air handler) possibly your evaporator coil is icing up and causing a build up of water just below where the 3/4" P.V.C. drain line connects. Instead of draining out the line, it is finding its way out of the unit else where. I have seen this many times. It sounds like you have done everything that I would have done, but take a look at the bottom of the evaporator pan and I bet that it also is starting to rust out.If the new overflow pan is not leaking, and the condensate line is leak free, it has to be leaking from the evap pan inside the unit.That's why you have the overflow pan in the 1st place to prevent ceiling damage as I am sure you know. I hope I have been of some help to you, please let me know what you find.

Sincerely, Shastalaker7

Nov 01, 2009 | Heating & Cooling

1 Answer

I have a unit in the attic and another part outside. I can stand inside under the ceiling vent and hear water running. When the unit cuts off, the water sound quits. I'm afraid something is not draining...


Sounds like your drain has sagged from the heat in the attic. It then backs up in the pan and sloshes around from the air moving. Get up there and see if that is the case, if so support the drain line so water runs freely to outside. This is an experienced guess. Good luck!

Aug 04, 2009 | Heating & Cooling

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