They all freeze up but there's a timed control that melts the ice every now and again so you don't notice it happening - the melt water just drains out the back through a tiny hole.
Your appliance might have a faulty defrost control.
The door seal might indeed be defective but I doubt it and I doubt it being the cause of the frosting up.
I am not an expert on anything
I just act that way...
April 2015
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