Question about Friedrich M18CF Split System Air Conditioner

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I was drilling a hole into the bottom of the pan from the rear for better drainage and I knicked the back coils. all the freon escaped;how can it be fixed inexpensively and can i buy the freon from commercial source like an auto parts store?

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You will have to get freon from a supplier such as Aireco, or R.E. Michaels. In order to buy it, you have to be CFC certified. If you want to fix the hole, you will have to be very careful, and cut the fins away from the hole in the coil. Then you will have to get a torch (map gas, acetelyne, etc) and solder it closed. Do not use plumbers solder, use a high silver content such as a brazing rod. Then after you seal the hole, you can hook an air compressor up to it, and pump about 100 to 150psi in to leak check your repair. If all holds well, you should be able to charge it. You may be able to find some R22 on ebay. I sell it on there sometimes. There are a lot of suppliers. Hope that helps

Posted on Feb 20, 2009

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Portable haier air conditioner drainage. Cannot find drain hole and unable to tilt ac. Water is building up in the bottom of unit.


Here is a thought, received by me from a AC mechanic recently. Window ACs no longer actually drain concensate. Rather, the water is caught in a pan with the idea it will evaporate back into the outside air. The reason for this is the dripping water frequently resulted in the growth of algae below the unit resulting is unsightly stains and sometimes, slippery conditions. Evidently, there were a lot of complaints about being 'dripped on' also. So, AC manufacturers don't put drain holes in the bottom any more. If the pan over fills, it will spill out of many makes. If you want yours to drain, put a hole in the bottom.

Like I said, just a thought.

Thanks for your question @ FixYa.com

Aug 08, 2011 | Haier hwr10xc6 Air Conditioner

1 Answer

I cannot find a drain hole and the window AC fills with water and then drains inwards. WHen I have large tilt to the back and take the ac out of the window, I get covered in water that has been sitting in...


Part of the problem may be, that you don't maintain enough tilt down on the back of the unit. 1/4" to 1/2" is generally enough to drain the water to the rear of the drain pan. Some drain pans have a hole near the rear of the drain pan. They can be hard to find, if they're clogged, because the clog blends in with the drain pan. Others may have a **** in the corner of the drain pan, rather that a hole.

If you are unable to find the drain hole to unclog it and you're feeling really lucky, you can always drill a 1/8" hole in the rear corner of the pan and create a new one. However, the unit must be unplugged and the pan must be almost dry, before attempting this. In addition, you must be extremely careful when drilling this hole, so as not to pierce any of the mechanical parts above it. In other words, you must be in total control of the drill.

Hope this helps you troubleshoot and solve the problem.

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2 Answers

It's spitting out water...only 2 yrs old


What type of system is it? What application (ie) window unit, split system?

Jun 29, 2011 | Air Conditioners

1 Answer

Leaking inside. Fedders A3X05F2A-J Unit is sloped away from house. Have sprayed coils. Doesn't seem to be drain hole at back of unit


Mellisia, the problem very well may be, that the drain pan hole under the unit, on the outside may be clogged. When that happens, water backs up and leaks out the front of the unit.The drain hole should be near one of the corners of the drain pan. And with Fedders, it may be on the edge/lip of the drain pan. The clog, may appear to be part of the drain pan and that's why you haven't noticed it.

Inspect the drain pan closely. If you can't find it. You can create one, by CAREFULLY drilling a hole at one of the corners of the drain pan. It doesn't have to be a large hole 1/8" to 1/4" should do.Be sure the unit is OFF and unplugged from the wall, before attempting this. Also, once the drill bit penetrates the drain pan STOP. You don''t want the drill bit to pierce the coils on the back of the unit.

Hope this helped you. Please let me know. Thanks.

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1 Answer

I have 2 Gibson AC's that are thru mounted that have worked well over the years with some water issues. WE have cleaned them without removing them from the windows with good success each year. Now, both of...


DONT DRILL A HOLE! It is to easy to drill through a refrigerant line and that's big problems. Water in the bottom of the unit is normal and there is usually a water slinger on the outside fan that blows the water on the condenser coil. Its good that you have checked the slope on the unit. It seems odd that both units started doing this at the same time. The water flows whereever it can from the front of the unit to the back. Probably the units are quite dirty and need cleaned. The dirt in the corners of the pans where the coils set can stop the flow of water through the pan.

Jul 05, 2010 | Gibson Thru-Wall/Window Air Conditioner

1 Answer

In drilling out a clogged drain hole, I accidentally drilled into one of the aluminum coil tubes. The puncture is very snall, but nevertheless the gas escaped.What have I got to do to fix this/ Thanks


In my opinion it is better to get an a.c technician to repair the tube, and then they have to vacuum it to see if there is not another leak. Then they will add freon again.

Aug 05, 2009 | Air Conditioners

2 Answers

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The only sure way to repair the unit is to replace the condensor coil. Pressures are too great for a patch job.

Jun 28, 2009 | Air Conditioners

2 Answers

AC accumulating water, not draining properly????


For some reason, newer AC window units no longer are made with a fluid drain. I think the intent is for the unit to be mounted at a sufficient angle (it MUST be angled back so the fluid drains toward the back of the unit) that the rear (outside) fan kicks the water over the condenser coil and gets rid of it that way, it also increases cooling ability slightly in this manner by misting the condenser coil. I would suggest increasing the angle of the back tilt by adding a 2x4 maybe under the unit to allow it to tilt? Alternately, you can drill a hole in the rear corner of the unit to drain fluid, but this is not recommended for several reasons...

1) It will usually cause rust to start at the drill hole.
2) you could accidentally puncture the coil system while drilling
3) the manufacturer did not make a hole, because one was not intended.

Jun 17, 2009 | Air Conditioners

2 Answers

Is there a drainage plug or hose on the air conditioner? It's leaking.


To increase the efficiency of the air conditioner's cooling to meet US energy requirements, most manufacturers eliminated the traditional drain plug. Instead, they switched to a design that used the extracted moisture from the room to help evaporatively cool the condenser.

To do this, the traditional fan blade was replaced with a 'sling blade' which was a fan blade with a rim or ring around it. The drain plug or drain hole in the bottom of the pan was eliminated and replaced with overflow notches in the back edge. Along with a solid piece drain pan, this provided a pool of water for the edge of the sling blade to dip into and pick up water to 'sling' or spray around the compartment to create evaporative cooling. The overflow notches established the maximum depth of the water pool and are also the lowest place when installed properly.

Although this is more efficient, this has caused 2 problems: increased noise as the water is slung around and water spray from the side air vents.

Persons have drilled holes through the pan or back edge as drains. This is not recommended as it negatively effects the colling ability of the unit and could lead to a voided warranty or premature failure.

Instead, insure that there is adequate pitch with the installation and make sure the overflow notches are kept clear.

If you 'need' a drain hose, my suggestion would be to drill into drain pan's back edge or the rear potions of the sides. The hole should be at the same level as the overflow notches. Once the drain hose is installed, block/cover the overflow notches to redirect the excess water to the drain hose instead.

Jul 07, 2008 | Samsung AW0603B Air Conditioner

2 Answers

Leak repair Samsung window air conditioner


Modern window units intentionally do not allow the water to drain directly, they want the fan blade to sling the water on to the condensor (the coil that is outside) to aid in cooling actually helps the unit cool better in high outside temps, it also evaporates it this way, depending on where the hole was drilled it may be able to be repaired, if it was just a copper tube it will be less expensive than replacing the whole coil. Since its a relative inexpensive unit anyway the labor and freon may be more than its worth. Lesson learned dont drill a hole in the base it lowers it's efficiency and can lead to a punctured freon line.

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