Question about Heating & Cooling

1 Answer

Our A/C unit is leaking between the inside unit and the heating unit. We've had two repairmen out. Both seemed confident that the lines were clogged and both blew them out. The a/c is still leaking. It cools fine, though it is curently off out of fear of water damage. We have no other drainage problems in the house.

Posted by on


1 Answer

  • Level 1:

    An expert who has achieved level 1.


    An expert who has answered 20 questions.


    An expert that hasĀ over 10 points.


    An expert whose answer gotĀ voted for 2 times.

  • Contributor
  • 24 Answers

Could be the pan under the evaporator has holes in it. Did the technicians pull the coil to check for holes in the pan? At the very least, after blowing out the condensate lines they should have poured water into the pan to check for proper drainage and to ensure there were no leaks in the evaporator's drain pan.

It could also be an issue with not having a trap installed in the condensate line. On some sytems that have the condensate line and evaporator coil on the suction side of the fan, no trap installed will allow the water to be sucked back into the pan and eventually may cause the water to spill over the pan. Having the trap installed insures the water will drain properly. It could also be an improperly installed trap that allows air leakage. To give you an example, if the condensate comes off the pan and goes to a tee (used often as a port for blowing or cleaning out the line) and the tee is not capped off when not being used for cleaning purposes, this will allow air to be sucked back through the tee and prevents the water from flowing through the tee and onto the trap.Our A/C unit is leaking between the inside unit - 25011e4.png You were correct in not running the unit as water can drip down into a fan motor below the pan and cause it to short out.

One other issue that comes up from time to time is the inability for water (condensate) to drain or trickle down the face of the evaporator coil. This is usually due to dirt blocking the fins of the coil and the condensate accumulates on other portions of the coil and when it hits the blockages of dirt or other debris, it doesn't perform its usual capillary action and follow the fins down into the drain pan, but instead stops, accumulates and then falls straight down into the lower sections. Check the coil's fin surfaces for dirt or other debris. If present, have the coil cleaned.

Posted on Sep 04, 2010


1 Suggested Answer

  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

a 6ya expert can help you resolve that issue over the phone in a minute or two.
Best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
the service is completely free and covers almost anything you can think of.(from cars to computers, handyman, and even drones)
click here to download the app (for users in the US for now) and get all the help you need.

Posted on Jan 02, 2017


Add Your Answer

Uploading: 0%


Complete. Click "Add" to insert your video. Add



Related Questions:

3 Answers

Have a Rheem central air unit situated outdoors, 20 yrs/old. The condensers are contained within it. I can run it 2 days straight, no problems. As soon as I turn it off, water winds up inside.

If the unit is freezing you will begin to see frost building up on the larger diameter copper. Also if you take the panel off of the evaporator coil (section that the copper is entering) you should be able to dump some water in the pan And make sure it is draining. Slowly pour the water.

Jul 10, 2017 | Heating & Cooling

1 Answer

Air conditioner last fall was low on freon, almost empty. how do i fix a leak?

It can be difficult to fix a leak without the proper tools. Hopefully the leak will be in a flare nut that can be tightened, or sometimes repairmen will forget to tighten the service port nuts. The service ports are where the copper lines connect to your outdoor unit and service guages would connect as well.
You can try to make you some real soapy water solution in a bowl. Take a little paint brush and brush it on to every connection you can find on the copper lines. You can buy a small container of soap bubbles at a plumbing or air cond supply house. In order to weld a leak though, you will have to relieve all refrigerant out of the unit and use a torch, then re evacuate the unit and charge it back up. This would take a repair man. Good luck

May 12, 2011 | Heating & Cooling

1 Answer

Frozen pipes coming from my outside heat pump and going to my inside unit

Frozen in suction line (bigger pipe) line due to indoor coil,airfilter and blower wheel dust blocked. Service the unit.
Second reason is short of gas. -Find out the leak and arrest it. And then do gas charging after vacuuming.

Dec 26, 2010 | Heating & Cooling

1 Answer

Have a 1984 trane heat and air gas furnace unit ..always freezes people always come and put freon in it over and over.. and of course blows out pipe. Had new outside unit put in this is a...

Could very well be.
Seems to me when they replaced the outdoor unit in 1996 someone should have found out that there was a leak when a vacuum was supposed to be pulled and held on the existing line set and and the unit in the attic for a period of time.
A known leak is supposed to be found and repaired.
find a company that is willing to spend time and find your leak.
Most likely it is in the line set going to the attic or the indoor unit in the attic behind the wall.

Jun 14, 2010 | Heating & Cooling

1 Answer

Dryer is not getting hot.

You did not say if unit is gas or electric heat. If electric, it most likely is heater element or a burned wire connection attached to the element. It also can be one of the thermostat heat sensors. If there seams to be only a little heat, it could be clogged vent line or bad blower wheel , or heat overload sensor that is going bad. If there is definitely no heat, then it is the heat element, or overheat overload (like a fuse).
The water problem is not related. It is usually from overloading the wash drum with too much clothes and the agitaator splashes water over the edge of the drum and it drips on to the floor; or it could be the pump seals that only leak when the pumpdischarges water. Goodluck, Macgivor

Jan 02, 2010 | Hoover Dryers

1 Answer

95 Lumina car, 3.1 , poor heat

Did you check the temperature switch to make sure it was actually turning all the way to high or hot and not staying on cold or medium heat? May need a new control inside car dash.

Dec 31, 2008 | 1995 Chevrolet Lumina

1 Answer

Kenmore Top Mount Refrigerator - leaking water from the Cold Control Defrost Timer/Automatic Defrost Control Housing

It freezes up for a few reasons. First the water is not running down fast enough. That is why the wire was added to add heat from the heater to the drain hole. The metal pan under the evaporator coil may not be lined up with the drain hole well enough and holding water there. If that looks ok the drain tube that runs down the inside back of the unit might be slightly restricted. Not much you can do about that. I would make sure that the aluminum wire goes in the hole about 2 inches and that the unit is tilted slightly back to help water flow.

Apr 18, 2008 | Refrigerators

Not finding what you are looking for?
Heating & Cooling Logo

Related Topics:

110 people viewed this question

Ask a Question

Usually answered in minutes!

Top Heating & Cooling Experts

Paul Carew

Level 3 Expert

2558 Answers

Dan Webster
Dan Webster

Level 3 Expert

8220 Answers

Donni Steen

Level 3 Expert

659 Answers

Are you a Heating and Cooling Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides