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If resetting the breaker gets the refrigerator working again, that means that you don't have a bad connection. This means that you just have a bad main control board. Nothing else would cause these symptoms where the interior lights would be affected and the dispenser stops working. You'll need to order and replace the main control board located on the back of the refrigerator behind an 8" x 10" sheet metal panel. The part number for the control board is WR55X26529 and it costs about $150 or so.
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