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Samsung window air conditioner model aw05ncm7 icing up not cooling

My unit was working fine, cooling the room I have it installed in then it seemed to stop cooling and the air flow seemed less. I opened the front to check the filter and the unit was full of ice. is this normal? I currently have it shut off to "defrost" so to speak. The coils and copper piping inside were totally covered. I also had it spit ice out of the front the other night while it was running! I am also curious if this particular model of AC has a drain plug. I've looked but I can't find anything that appears to be a plug.

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After I opened the front of the unit and discovered it full of ice, I left the unit off until it defrosted, so to speak, after the ice had melted, I turned the unit back on to see what happened. It is working fine now, I'm not sure why it iced up, if this is normal or not, but after it melted the problem was solved.

Posted on Jul 23, 2008

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Portable Air Conditioning great portable air cooling


Portable air conditioning offers you the convenience of mobility. All you have to do is roll the portable air conditioner to the room in which it's needed. Install an exhaust hose out a window or other opening (everything you need is provided) and turn it on. The installation process for these units is very simple. These portable air conditioning units are built small enough to be very mobile and are supplied with wheels for easy movement. A portable air conditioner will also work very well in apartment situations where you will often find a window unit is unacceptable.

Portable air conditioners are very unique in that they are portable and can be easily moved to different locations in your home or business. They can be a highly effective way to either help out an existing HVAC system in one room or cool a single room entirely. They are also one of the best ways to cool a room or area without having to install a window mounted unit.

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Portable air conditioners are a very good cooling option for those who can't use the more conventional air conditioning methods. Remember though that this type of unit is not as efficient as most window units or conventional air. So while they may make your environment cooler, it won’t turn your tent into a room at the local hotel.

So as you can see these air conditioning units have some great advantages over other types of air conditioning. They are a great alternative for unique applications where central air or conventional window units are either unfeasible or too expensive. During special events, portable air conditioning can also be a great way to keep guests or equipment cool and comfortable. Always be aware though that because portable air conditioning will remove moisture from the air, they will also need to be drained occasionally similar to a dehumidifier.

Does your application warrant a permanent air conditioner of some form or should you just use a portable one? There are some interesting things to consider when making that choice. Weigh out all of the different options and make that decision based on what will best suit your needs.

on Dec 13, 2009 | Heating & Cooling

1 Answer

Recently bought samsung multi split 3 rm air conditioner. 2 of the room air con working fine but the 3rd room fan coil seems to be blowing only cool air not like the other 'aircon' feel coolness. Got the...


doesnt sound like a gas problem. theres a vavle they opens and closes inside the unit that might be playing up either the vavle or the indoor pc board. did it ever cool ? might also be the vavle on the outside unit were not open with the alan keys so theres no gas going to them .

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Ice on the evaporator


Make sure the coils are not dirty,if they are not dirty,add freon to the system,not much,feel the evaporator,when the evaporator is cool all over,and the condenser is warm all over,there is enough freon,add very little at a time,this system does not hold much freon,if this was helpful,at all,please rate,thank you.

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Frigidare window air conditioner with remote control about 3 yrs old. All controls seem to be working except when the energy saver mode is suppose to shut down the unit / the display goes dark but the...


Hello, I can assist you.

If the unit is supposed to turn off and it doesn't, it will be necessary to check several things.


  • First, is the unit cooling properly? See the section entitled "The air is cool but doesn't seem cold enough."

  • Next, is the temperature of the room adequately cool? If the room temperature is cold enough try setting the thermostat to a higher temperature. If the unit then seems to work properly leave the thermostat set to the higher temperature.

  • If the unit is cooling properly when it is turned on and the room is not cool enough the problem is probably that the unit is trying to cool an area that is too large for its capacity. Use the following chart to find the appropriate size air conditioner to use:

AREA TO BE COOLED / CAPACITY (BTU/HR)

100 to 150 square feet = 5,000

150 to 250 square feet = 6,000

250 to 300 square feet = 7,000

300 to 350 square feet = 8,000

350 to 400 square feet = 9,000

400 to 450 square feet = 10,000

450 to 550 square feet = 12,000

550 to 700 square feet = 14,000

700 to 1000 square feet = 18,000

If the room is heavily shaded, reduce needed capacity by 10%

If the room receives a lot of direct sun, increase needed capacity by 10%

Add 600 Btu/Hr for each person in the room if there are more than two people

If the unit is for a kitchen, increase the capacity by 4,000-6,000 Btu/Hr.

If the room size is too big for the air conditioner you have two possible choices. Either decrease the room size by shutting some doors or partitioning off an area of the room. Or, increase the BTU of the air conditioner for that room by installing a different air conditioner with a higher BTU rating.

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1 Answer

Always wondered why there is no drain hole at bottom rear of unit, so no condensation can drip away-now I find it not cooling well and the bottom front of the condenser is iced up. What to do?


Newer models of window AC's use either a flailing fan to spin the condensate out the sides of the AC (outside the window) or the heat of unit and outside air will evaporate the condensate.

Either way, any excess will spill over the back edge, hence the reason that manufacturer's recommend that the AC be installed with the rear of the unit slightly tilted down to prevent excessive condensate (water) from building up and/or coming inside the front of the unit.

As to the icing, it could be that the unit is undersized for the space you are trying to cool and can't keep up and is running all the time in an attempt to cool the air down in the room you have it installed in. Try letting the unit "defrost" by shutting it off for awhile (until the ice melts) and then keep the shades pulled and the door closed once you restart it. I also tell people to give the AC a chance to adjust by setting the cooling temp to around 10 cooler than the present temperature of the room.

It's really hard to completely cool down a hot room all at once, so unless you're willing to let the unit cool it down in stages, it might not be able to ever get a 90 degree room down to 65 degrees in one day, if ever. Give it a try and see what happens, otherwise, you might need a larger rated BTU unit to get the cooling you desire.

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