No I don't think so. I think you either have a stopped up defrost drain or a bad defrost heater and terminator. Get into the evaporation section and check for ice. If the defrost heater is bad replace the defrost terminator thermostat. Would not be a bad idea to replace the timer or adc (auto defrost control). The fins are coils on the compressor should be clean and the fan motor(if applicable) by the compressor should be running when the compressor is.

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