Question about Fedders A6Y12F2D Thru-Wall/Window Air Conditioner

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Ice on the evaporator

The unit gets ice on the evaporator then the blower motor blows it in the room. The unit keeps the room cool. How do I fix it? I am a licensed a/c mechanic, but I do installations.

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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.

Posted on Jul 06, 2010

Testimonial: "Thank You. It worked. It turns out that leafs from the tree that the unit is under fell inside the top vents of the casing. Ths must have happened in the fall. It was blocking the air flow through the condenser as the fan turned. I did a total clean out of the unit. I cleaned both coils too. The a/c worked wonderful last night. There is no more ice on the evaporator coil. Thank you very much, Paul"

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1 Answer

I changed the blower to evaporator. The air temperature is cold but after 2 days the evaporator was turned into ice. The evaporator blower is not blowing some air. Is this overcharging of FREON because...


The blower is it running in the right direction? the cupped blades should be facing the outlet of the fan housing, I have done it myself. And are the coils clean could also cause the ice build up, a good pleated filter will keep the coil clean.

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12000 btu air conditioner is brand new but ices up when turned on. Presently it is used in an attic room that is 15x15 sq.ft. Any suggestions/solutions?


thins that can cause an a/c to ice up
1 something blocking the return air to the system (dirty filter, something in front of the unit blocking the incoming air )
2 defective thermostat keeps the unit running past the desire temperature system does not cycle off and ice begins to form.
3 low refrigerant charge this causes the unit to run constantly and the room never cools off ice also begins to form.
4 defective blower fan this is will prevent the air from circulating pas coil and ice will form.
I HOPE YOUR SOLUTION IS SIMPLE.. IF THE UNIT IS NEW IT SHOULD BE UNDER WARRANTY GET IT REPLACED THERE IS NO POINT IN GETTING IT REPAIRED IF YOU JUST PURCHASE IT.

BEST OF LUCK

Jun 01, 2011 | Sharp AF-R100BX Air Conditioner

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Our window-type airconditioner never gets that cool and when we remove the front cover, its all covered in ice....what should we do ? thanks


Problem is most likely the de-icing switch, a thermostatic device which cuts of the compressor when the evaporator gets below a certain temperature -- the de-icing switch is not opening, the compressor keeps running and the unit ices over. With ice on the evaporator, air does not flow over it, and the unit does not cool the room.

More info, let me know.

Charlie

Feb 20, 2011 | Kitchen Ranges

1 Answer

My air condition blocks some ice in the system, causing not enough cool provide.


Water leak /Icing in your evaporator is the common problem in split airconditioners.. It happens due to:

1. Air filter block 2. Evaporator coil Block. 3. Less rpm of blower motor. 4.Drain line blocked.

To rectify, service the unit completely. If blower motor less rpm, replacemotor capacitor.

Dec 18, 2010 | Heating & Cooling

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There is no cooling in my fridge but fridge is on,fan is working but no cooling


it can be any of 3 issues,either the damper vent door between the freezer and refrig is iced up and cant open and close,or the motor that operates this door is bad or without power,then the evaporator coil in the rear area behind a panel inside the freezer is iced over and you can't blow cold air over a solid wall of ice,if this is the case the rear wall inside the freezer will have ice buildup on it,then it can be a bad ptc contactor overload relay on the compressor keeping it from starting and cooling the unit

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Ac fan speed


Replace the blower motor resister,this is the speeds for the blower motor,it is located very near the blower motor,and is mounted on the blower box,and it actually goes inside the box,to keep it cool.The reason for it`s failure is the blower motor,even though the blower motor sounds,and runs good,it is drawing too many amps.If this was at all helpful,please rate,thank you.

Jul 27, 2010 | 2001 Ford Expedition

1 Answer

Our Quietmaster 's cooling works for a while and then doesn't.


Remove the front cover and make sure the temp sensing wire is in place on the front of the evaporator coils. If it has fallen and is touching the evaporator plumbing the unit can preform as you described.

Also check for signs of icing / ice build up on the evaporator coils after the uint has run for a couple of hours. Ice build up will also cause this symptom. IF you do find that the unit is icing up that can be caused by:
1. A very dirty evaporator
2.. A clogged Air filter
3. Contaminated by internal plumbing debris / clogged freon passages
4. A blower Fan motor running to slow.
5. Freon Pressure and return lines touching together usually either on the side of the unit or just behind the center chassis air wall enroute to the compressor.
6. A corroded electronic control board.

As you can see above there are several things that can cause the symptom your described. It cetainly sounds as if you either have an icing problem or a control board problem.

The next time the symptom occurs... place the unit of fan only for at least 30 minutes and then see if you can switch it to cool, and actually have it cool. If it does cool properly after switching to fan only for 30 minutes you most likely have an icing problem.

Thanks for using FixYa.

Kelly

Jul 20, 2010 | Friedrich QuietMaster Electronic SS12J30D...

1 Answer

My unit was'nt cooling the room like it use to and then this morning it was leaking water in the room


Hi, it sounds like the evaporator coil that is located on the inside as built up with ice, and has blocked most of the air flow. What can cause this is a very dirty filter, indoor coil that's iced up, and if the filter and coil are clean, make sure the indoor blower is up to speed. Turn it off and let it defrost. It will take some time. Turn it on fan only. If all is clean and motor is fine and it continues to ice, you are low on freon, and have a small leak causing it to ice up. It is probably a very small leak that may have taken a few years to leak to this point. I would make sure the filter is clean, coil indoors is clean, and blower is up to speed. If this is all good, you will need to get it charged. This unit holds less then 2 pounds of R-22.
Keep me posted on the out come. You can pull the indoor cover and see if you have ice on it. Let me know.
Shastalaker7

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1 Answer

Fridgedaire Elite frost proof fridge part not cooling, Freezer sems fine


If the frozen side is colder than normal and some extra frost is forming where the fan blows,and there is ice in the bottom of freezer compartment, and the cool side is not cool enough, their is a good possability the defrosting unit is not removing all the frost and ice . the defrosting unit has a timer (usually near thermostat) that turns off the cooling fan and compressor and turns on a small heater around the evaporator ( about 20 minutes every 2 days) (evaporaror is cold heat exchanger coil inside the back wall behind a cover near the recirculating fan0, the fan circulates air to both compartments through two small openings, if these openeing are closed by ice buildup cool air can not circulate to the cool side. cure 1. remove all food and leave fridge off for 24 hours with doors open (take precautions to ensure children can't get locked in side and suffocate, if you get a qt of water in bottom of unit (may leak on floor) ice buildup that the defrost heater can not remove melted and was your problem . turn frig on replace food on unit. cure 2. turn frig off, remove food from both sides, remove shelves that block access to evaporator, remove cover over evaporator if you see the evaporator coils free of ice look at openings (2) to other side, one may be blocked with ice the other with frost, carefully melt ice with hair dryer.
If the evaporator coil is solid ice heater or timer or fan has failed. good luck

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