Question about Samsung AW0803B Air Conditioner

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I need help my unit keeps frezzin up it always get ice on it i have to turn it off for a while to let it defrost thick sheet of ice y is this happening and how can i fix this

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Either the filter is plugged up and the air flow is reduced or the unit is low on freon and has a leak...
Here is a tip about troubleshooting your air conditioner...
There are many things that can cause your air conditioner not to cool…

Air Conditioner Trouble - Review the Possibilities


Posted on Sep 14, 2010


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Machine is making a solid sheet/block of ice on the evaporator plate and no cubes are dropping. The sheet just keeps freezing larger and larger. Any trouble shooting to perform? Top off The R404a?

your evaporator should not be covered with thick slab of ice. If it is, the ice serves as an insulator and the freezer temps will not go down to the required 10 degrees or so for the icemaker to operate properly. if ice is forming on the evaporator then the self defrost cycle is fubar - check the defrost timer and/or heat element for operation.

Charging refrigerator is not recommended since the amount of refrigerant is extremely critical for correct operation- not like an AC unit.. Check all else before low refrigerant can be blamed.

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My Samsung RF4289HA refrigerator freezer section has been building up sheets of ice up to 1 inch thick every 30 days. What is causing this? Either an internal leak or a broken defrost cycle?

Per Samsung it may be that the vents in the back of the section are partially blocked.It could also be due to poor seals around the door. I have the same problem. Mine are definitely not blocked and my seals are almost new. The ice is due to poor circulation for defrosting. I learned to live with it. Every month, I pull the unit apart..remove the ice on the bottom. I got the procedure down to 7 minutes, Samsung was no Help. I think they do not want to admit a Design Flaw.

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Ice bridge too thick

look at the evap plate to see if there is a ice thickness probe, if there is it should have a screw 5/16 going through it that you can turn in or out you wont the thickness of a penny between the evaporator and the stainless sensor turn screw 1/8 of a turn at at a time let machine make a sheet of ice and keep making adjustments until you achieve the right thickness. Now if there is not a probe then the thickness is built in the run time of the control board. you can not adjust it. you need a tec to look at it to make sure your not having a harvest problem if it is not harvesting every time them ice will be to thick.

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Hi I have a 1 year old Whirlpool french door refridgerator bottom freezer with ice maker. A couple of days ago I noticed a thick sheet of ice that formed on the bottom of the freezer. I cleared the ice...

Hello there,
When your refrigerator begins to have ice at the back, it is known as ice build up. There is no leakage anywhere, it is just that there is a component or the other that is being faulty inside the unit of the refrigerator. The defrost unit is where the problem is from.
The defrost process is done automatically and the process involves the defrost thermostat, the defrost heater and the defrost timer. Once one of them or more becomes faulty, ice will begin to form at the back of the refrigerator.
You will have to test the defrost timer, defrost heater and defrost thermostat in order for you to be able to tell which is faulty and need to be replaced.
You can go through these tips if you intend to fix this yourself. Defrost thermostat defrost heater defrost timer
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1 Answer

A few days ago I noticed that the bottom of my freezer side of the fridge was covered in about 1/2 inch of ice. It goes all the way from the back of the freezer up to where the door seals...and the door...

its not doing a defrost by itself you need to replace the defrost heater/defrost termination sensor/thermostat/defrost timer could be any one of these parts causing this problem you need to test each part with a multi-meter to determine what needs replacing.

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Outer unit produce ice after tempreture 21

Hi, what you have is called a Heat-Pump, and it also has a reversing valve that reverses the flow of freon through the unit. In the winter time, the outdoor unit becomes the evaporator coil and the indoor becomes the condenser coil. You have what is called a defrost board and also defrost thermostats on the outdoor unit. When the unit starts to build up ice on it, it has a defrost timer and along with the stats will terminate a defrost and melt the ice away. You should see the fan shut down and the unit will start to throw off steam, almost looks like smoke. Ice is a normal thing to happen on heat-pumps as long as it goes through a defrost cycle every so many hours to keep the ice from getting real thick and the unit stops heating your home. So, if your not having heating problems, and the ice does not keep building and getting thicker and thicker, this is normal, and there is nothing for you to worry about. If you have any more questions, feel free to contact me and I will help you out. Please don't forget to rate this post for me, as I know you will be kind.
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Large amount of ice has accumulated behind the back panel in the upper part of the unit on my Sante Fe RX. About 2 to 3 inches thick.

Your post says you have an RX but the picture shows a SantaFe Classic.
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The defrost thermostat has an internal set of electrical contacts that are designed to open up and turn the compressor off when frost or ice has accumulated on the tubing and the evaporator coil. If the contacts fail to open, the compressor keeps running and the frost and ice just keep accumulating until such time as the homeowner unplugs the unit or a sevice tech replaces the defrost t-stat.
Thermastor Service Dept
800-533-7533 x 8459

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I have a maytag bottom freezer refrigerator model#mbf1956keq

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