Air conditioner not draining but icing over - Haier Heating & Cooling

1) you have temp set too low
2) defrost circuit not working
3) low on freon
4) drain is clogged

Water can fall off of coil prematurely, before it reaches the drain pan, sometimes due to debris on the coil surface, airflow turbulence in the return air box, and in some instances I've never resolved until the machine was replaced. The drain pan could be cracked or have blocked channels that allow water to drain from the rear to the front. It could also have ice on it/freezing up. Some will developed a thin sheet of ice and drip water. The drain line may be stopped up or broken/loose fitting. Some coils have a laminate on the aluminum fins that can deteriorate. Hope this gives you something to check!

Bruce, the tow most common things that cause the problem you're having, is high humidity and the back of the unit is not tilted down 1/2"' , so the water can drain outside. If yours is tilted correctly, check the drain hole on the outside for clogs.

Air conditioners MUST be tilted to drain. If not, they will drain into the room. Try shimming up the inside of the window sill with a few thin boards. The ice problem is either because it can't drain or, it is too small for the area being cooled.

Check/clean intake air filter and condenser fins,as well as be sure condensation drain is clear as well. Sometimes if not the right angle, moisture remains inside unit rather than draining outside, or wherever your drain is, make sure it's clear and draining well.

clear drain line with air or water. If unit is really old possibly drain pan rusted with holes. make sure to change air filter this will cause coil to ice up if restricted.

clean the filters and check the drain, to clear the drain run a jug of warm water down the pipe

pop out drain plug heat up pan with heat gun to melt ice

Dear Customer,
The likely reasons for a leaking AC are...
1) Improperly installed.
A window air conditioner must be slightly lower at the rear than the front. This allows the water being removed from the room to drain to the back of the machine. A difference of one inch is sufficient. This is always the first thing to check. Many are improperly installed in the haste to get relief from the heat. If installed too low at front the water will flow into the room rather than outside. If installed too low at rear, water can roll out front edges before has chance to exit towards rear drain.

1. Icing up.
   Water being de-humidified can turn to ice if there are problems with the cooling system. There are many reasons for an air conditioner to produce ice. Remove front grille while machine is operating. If ice is present on the cooling coil you will probably need service. For more information see our other article: Why window Air Conditioners Ice up.

1. Air leakage around air conditioner.
   If warm air is able to enter around the air conditioner it will encounter cooler, dryer air. When they meet condensation will occur. If water leaking from front of air conditioner inspect to see if dripping from body of machine, or water droplets clinging to front area. To test, operate machine for 30 minutes and then use flashlight to check under front edge of base. Small water droplets here indicate an air leakage problem. Add foam insulation to stop warm air from infiltrating.

1. Drain hole blocked.
   Rear of air conditioner base has a drain hole or groove to allow water to escape. If becomes blocked water can back up. To test, operate machine for 30 minutes and then inspect if draining properly. If appears blocked use a small piece of wood to open drain hole at rear of metal base. CAUTION: Never be tempted to drill holes into the air conditioner body to relieve water pooling. Severe damage can result.

1. Internal drains blocked.
   There are small passageways that allow water to drain from front of air conditioner to the rear. If they become blocked water will pool at front of machine and overflow onto floor. If this happens the air conditioner will require removal from window and servicing.

1. Outside temperature too cold.
   This occurs at end of cooling season. If outside temperatures drops below 60 degrees Fahrenheit at night the cooling coil may ice up. If no leakage at bedtime but water in front of machine in morning, suspect this problem. If this problem suspected turn off machine before bedtime and restart as day warms. Alternately, operate machine at night with selector switch in ‘fan only’ position. This will circulate room air during night but not allow cooling.
   

Hope u find this useful. I'll be thankful if u could rate this. thank you.

There normally two types of leakages from the wall unit.
1.The warm air in the room when comes in contact with the cooling coil of heat exchanger (consisting of fine fins where compressed refrigerant evaporates) looses its heat & cannot retain the same moisture content at lower temperature at the point of contact with evaporator. There is a provision of a drain pipe to carry this condensed water to outside water drain. So if the drain pipe is choked or the coupling joint of the drain pipe at the bottom of cooling coil is not proper, there will be water leakage, This can be easily attended by physically looking at the fittings.
2.The second problem can be the leakage of the refrigerant. If there is second type of problem, then there will be very little or no cooling irrespective of continuous running of air conditioner. This can be easily checked by feeling the temperature of outlet air from the air conditioner.

Conclusion-As you have written that there is leakage from the air conditioner, but you have not written whether it is visible or invisible. If the leakage is visible, it is problem number 1 & if it is invisible, it is problem number 2.

If you are not satisfied you are free to ask for more explanations.