Question about Refrigerators
The freezer starts to create frost and in turn the lower part of the unit get warmer. once you defrost it is ok for a while. Any suggestions?
Hello and welcome.
It's clear that your self-defrost system has ceased to function. What needs to be determined is which part has failed. This depends what make and model you have, as there are some parts that are common failure parts on some models that almost never fail on another.
The basic defrost system consists of a heater (which is either a glass tube/radiant style or a calrod element), a timing device (either a simple clock with fixed defrost intervals or an electronic control that adapts to the environment and changes the frequency of the defrost cycles, and finally a cycle termination thermostat, which terminates the the cycle in the event the timing system fails or the temperature of the evaporator rises to a point where heat is no longer needed.
What I will do is force a defrost cycle to start and then check for amperage in the circuit with am amp probe. You often do not even need the amp-probe, because you can hear a sizzling and popping sound if the heater is energized on many units.
Without knowing what make and model, this is all the info I can provide at this time. I hope you found it useful.
Posted on Dec 27, 2008
Check your gasket on the freezer it may not be sealing properly. that is the main cause of the freezer compartment frosting up. also when you defrosted it did you otice if the drain line was clear and the water was going out of the freezer?
Posted on Dec 27, 2008
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Posted on Jan 02, 2017
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Normally when frost build up occurs it's because warmer outside air is getting into the freezer and the moisture from that warm air cools and condensates then freezes into frost or ice. You either have a bad seal like the other listing states try leveling the front a little higher than the back. Or you may have an issue with the defrost heater, thermostat or timer. Do you have a light that comes on from time to time? If so you have an auto defrost unit. If there is no light you may not have a frost free freezer which means you will have to remove the frost manually.
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