Ice build up in freezer...Auto Defrost not working Model unknown...smaller model...about 5 feet tall...2 feet wide...freezer on top..no ice maker. Bought in 2002....noise during defrost quit about 2 months ago...Freezer works but ice builds up and blocks air passages to bottem.....bottem warms up.

Check the freezer:
If your fridge does not have an auto-defrost function then excessive ice-build up in the freezer can cause the beeping alarm. If you see a lot of ice build-up in the icebox or freezer, switch off the fridge and let the ice thaw. Once the fridge is thawed, the beeping should stop.

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.

HI.TERRY.freezer has to work at its optimum.for the ice maker to work. i would try to defrost the freezer completely first and try.good luck.Ali

Ice makers defrost is the harvest cycle. The purpose of a defrost cycle is to clear any ice build up, right?

Look into the back of the freezer to see if frost is building up on the rear panel. If yes that is a sign of the defrost system failed. I will need your model number. When most refrigerators begin the problem it is a sign that defrost is not happening. Ice makers stop working above 5 degrees. Send me your model number and I will help you get this solved or pointed in the right direction, Sea Breeze

It wud need a new defrost heater, the fridge gets its air from the freezer , if the defrost heater does not work , ice builds up in the airduct , equals to no cooling in fridge

High humidly could cause condensation or the magnetic seal could be bad.
A couple of things to try;
The easiest thing to do first is to clean around the rubber seal very good with mild soap and water and the metal which the magnetic rubber seal contacts to seal the door. If you find a crack or a deformation of the seal it will let condensation it the refrigerator.
Does the freezer auto defrost or is a lot of ice bult up around the freezer walls? If so manually defrosted the freezer.
Dripping from the Ice maker water supply?

You must replace the defrost heater and thermostat located behind the freezer wall panel.

It may be the defrost thermostat. This thermostat turns on a heater in the freezer a couple of times a day and melts the ice in the freezer which should go into a tube that leads to a pan underneath the refrigerator, where it sits and evaporates from the heat of the compressor. It could also be the timer which tells the refrigeator to turn off a couple of times a day and tells the defrost thermostat to turn on.

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