Ice build up at back of freezer - Refrigerators

Leaking door seal, putting warm food in the freezer, or defective defrost timer or heater.

https://www.google.com/search?q=massive+ice+build+up+on+back+wall+of+my+swan+fridge+freezer

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There is a fan in the back of the freezer that runs when the compressor is running. It sounds like you have ice build up around the fan.
You could have one of these problems: (Sorted by most likely to least likely)
1) Auto Defrost timer, defrost bi-metal or defrost heater is defective - the unit will go into auto defrost about twice a day, if this fails you will have lots of ice built up around the cooling fins and sometimes on the fan. Pull the back off the inside of the freezer and check for ice build up around the cooling fins, there should be none or very little if its running normal.

2) Bad door gasket - if the freezer door is leaking warm moist air inside the freezer it could be condensing around the fan causing ice (you will also see ice build up on things inside your freezer too).

3) Plugged drain - the drain leads from the freezer down to the drain pain under the fridge. If this is plugged ice will build up on the bottom of the freezer and potentially around the fan.

Hello,

Clearing the ice build up is a good start,the problem though is the drain pan under the coil in the freezer thats iced up is blocked so when the defrost heater comes on and melts the frost from that coil,it the water is collecting in the freezer and in many cases drips into the fresh food compartment,clearing the drain will resolve your leaking/ice build up issue.THE DEFROST HEATER IS GOOD melting the frost in the first place and hence forth that melted frost stays in the freezer and becomec ice.

Gene

Ice building up in the freezer is not good, it means that your defrost heater is not working.The purpose of the defrost heater, as the name implies, is to prevent ice from building up on the evaporator that is inside the freezer compartment. The heater and/or thermostat failure is responsible for the ice building up in the freezer. Replacing both of is recommended, but if the heater shows continuity with an ohmmeter, just replace the thermostat; if in doubt, replace both of them and your refrigerator should be back to normal. Do not forget to clean the refrigerator condenser fins.

There is a drain the back of the freezer that is frozen. Your trickle of water comes from the ice that melts off of the refrigeration coils during the defrost cycle. You need to turn off the freezer, then remove the rear cover from the back wall to expose the coils. With a hair dryer, melt all of the ice. You will find a drain under the coils. Melts all of the ice in this drain so water can get out of the freezer. When this drain is clear, you can put everything back together, and your freezer should work normally.

I wouldn't defrost it. It could be a couple of different things causing this, from a bad defrost thermister to cubes overflowing out the back of the ice bin. Try removing the ice bin and clearing the cubes off of the dispenser motor cover. The fan will eventually sling the ice formation off.

Your problem is possibly one of two things. The ice maker is leaking or the defrost tray behind the rear panel inside freezer back wall is clogged with ice or something else. If you know its not the ice maker unplug the refrigerator and remove the back panel to see if the drain is blocked there, Let me know, Sea Breeze

if there is ice build up at the back wall of the freezer section, then you have a problem with your defrost cycle. the freezer would not be very cold for the ice maker to work.

it's either your timer, defrost heater or your bi-metal.


tnx 4 using fixya,

drcool

remove back panel inside freezer. you will see drain tray at bottom with a drain hole in the middle - this is blocked usually with ice. melt off with a hairdryer and follow up with hot water till water flows away freely

I HAVE A MSD2454GRW, 23.5 CU, MAYTAG AND ICE BUILDS UP ON THE FLOOR OF THE FREEZER TO A POINT WHERE IT RUNS ON THE FLOOR. CAN CLEAN IT OUT AND 12-15 HOURS LATER, ITS BACK.