Daewoo frsu20iai freezer builds ice at bottom and starts to defrost some items?

Look on the back of the unit for a plastic hose coming out the bottom to a drain pan usually sat on top of the compressor. Bend a straw and push up inside. If it won;t go, there is a blockage, usually ice in the drain. Fully defrost the freezer and blow through the straw until clear.

drain is plugged up were it is normally drain to defrost the freezer completely find a place to store food in freezer for a few ours leave door of freezer open pull out all shelfs and lay a few tools down at bottom of freezer were you seen the ice build up after you have done that pull ref away from wall take back of bottom look fro drain pan with a turkey baster send water thru back of freezer inside if water still flows back out into freezer drain tube is still clogged use warm water when doing this if you see drain pan full of water use a shop vac that can deal with water suck out water send water again water should go strait to drain pan if still flows out may have to remove drain tube

Hi and welcome to FixYa, I am Kelly.
There are 12 midelos that fall under the model number you passed. I will cite EV171NYMQ05 as a reference model number via this link:
http://www.appliancepartspros.com/partsearch/model.aspx?model_id=5140769

The freezer fan should be on anytime the compressor is on. If there is an ice block built up on the evaporator coils it can lock the fan blade in place via the ice build up. Additionally... if the fan motor bearings are dry or coated with sludge this too can prevent the fan motor from operating. The fan motor is item 3 this link: http://www.appliancepartspros.com/partsearch/model.aspx?model_id=5140769&diagram_id=28174432#d28174432

Detail views:
http://www.appliancepartspros.com/Appliance-Parts/whirlpool-motor-evap-item-number-ap4539455.aspx

To check the can motor all that is required is a simple continuity check across the 2 connector wires. You should read under 480 ohms.

If you discover that the fan blades are encased in ice... do a manual defrost: (be ready to tend to a water mess)
1. By first unplugging the unit and then removing the freezer contents.
2. Direct an external fan into the freezer compartment for just over 2 hours.
3. Make sure the compartement drain funnel is clear of obstructions. Item 11 this link: http://www.appliancepartspros.com/partsearch/model.aspx?model_id=5140769&diagram_id=28158051#d28158051

After the 2 hour manual defrost period plug in the unit and test to see if the fan motor is running.
If it is running you may have an automatic defrost problem causing the ice build up. On a freezer the ice build up will start again if there is an automatic defrost problem in 3 - 5 days. Until the automatic defrost problem is corrected you will end up doing the manual defrost routine described above everytime you have improper cooling problems.

Components that can cause the automatic defrosting problems are
1. The defrost timer item 7 this link: http://www.appliancepartspros.com/partsearch/model.aspx?model_id=5140769&diagram_id=28257341#d28257341 Because it is not cycling or stuck in one position.
2. The defrost bi-metal thermostat item 9 above link (stuck closed)
3. The defrost heating element item 5 above link. (open)
And of course internal wiring....

Check the fan motor for continuity... if you attempt to lubricate it which is very difficult on this fan motor make sure you use paraffin based "Turbine oil" and not a regular household or automotive oil. Using any other oil will cause the fan to stop working in as little as 30 days.
Thanks for choosing FixYa,
Kelly

http://www.partmaster.co.uk/search.pl?query=FRS+2031IAL

I've just had a similar problem. I fixed it by removing the large panel on the back of the inside of the freezer. I found a large build up of ice at the bottom of the freezer which seems to have developed because the drain hole at the bottom of the freezer was blocked. I defrosted the ice, cleared the drain and now the freezer is working fine.

If this is a self defrosting model make sure that you don't have frost build up on the back wall of the freezer causing the air not to circulate like it should. If you do have frost build up other items will eventually start thawing as well. If this is the case you have a defrost problem.

If this is not a self defrosting model then make sure it does not need defrosting.

You normally will notice ice cream being soft before you notice other things thawing.

Also make sure the door is shutting good and you may try putting the ice cream in a different location.

If it's a frost free model, it could be caused by a plugged defrost drain. Every time it goes through a defrost cycle the water is supposed to drain into the compressor compartment. You can defrost it by unplugging it for a day or two and then remove the panel covering the evaporator coil. You should be able to see the drain tray under the coil and find out whats blocking it.

I am not an expert, but if the defrost heater is not working, then maybe when it was unpluged the coils didn't completly unthaw. If not, the freezer still will not cool properly.

There is normally a small filiament of metal which is attached to the defrost element and conducts heat down the drainpipe preventing ice build up. You can pour some boiling water onto this area and even wriggle a piece of plastic tubing down the drain pipe to dislodge any blockage. For future prevention, you can attach a piece of copper wire around the defrost element (in the absence of the original filiament) and extend it down the drainpiple

Defected DEFROST HEATER can cause frost build up on the panel at the back of the freezer,and freezer stop cooling and ice frozen on unit so air could not flow to refrigerator side.Water will coming out caused of unbalanced freezing,and causing the flooding of water in the floor. You must change this defroster heater assembly so it will works normal again..


Hope this may help;

Regards,
VOTIT