Tappan Chest freezer Parts — Browse All Models

How to deal with frost inside your Tappan chest freezer

Some frost inside the freezer is normal, because each time you open the freezer lid, warm, moist air enters the freezer and forms frost. But if excessive frost forms quickly inside the freezer, it could be that a damaged lid or door seal is constantly allowing warm, moist air into the cabinet, resulting in excessive frost. Check the door or lid seal and replace the seal if damaged.

A crack in the plastic liner inside the freezer cabinet can also allow warm air into the freezer and cause frost. Check the inner liner and repair any cracks using a liner repair kit.

If you see frost on the evaporator cover in the back of the freezer and the freezer isn't cooling well, then a failure in the automatic defrost system could be causing the frost. If the defrost heating element that melts frost off the evaporator fins fails, frost will cake up on the evaporator and interfere with airflow and cooling in the freezer. A failed defrost bi-metal won't allow current to reach the heater so a failed defrost bi-metal will also cause frost on the evaporator and inhibit cooling in the freezer. A failed defrost timer won't advance into the automatic defrost mode so the defrost heating element would never turn on to melt frost off the evaporator. Check the defrost system if you see frost only on the evaporator cover.

Tappan chest freezer common replacement parts

• Lid gasket. The lid gasket is a flexible seal that attaches to the outer edge of the freezer lid to form an air tight seal around the lid opening when the lid is closed. The lid gasket prevents warm, moist air from leaking into the freezer compartment.
• Overload/PTC relay. The overload/PTC relay starts the compressor motor. It has 2 components: an overload protector that trips when the compressor motor overheats or locks up, and a relay. The relay manages the start-up of the compressor and keeps the compressor running until the compressor cycles off.
• Temperature control thermostat. The temperature control thermostat is mounted in the control housing area and controls the temperature inside the freezer. It turns the compressor on and off as needed to maintain the set temperature in the freezer. The thermostat has a temperature sensor tube that detects the actual temperature in the freezer compartment and controls the temperature based on the reading from that sensor. Replace the temperature control thermostat if it isn't operating properly.
• Wiring harness. The wire harness is a collection of wires, cut to specific lengths, that connects the various components in the freezer. The ends of the wires normally have the proper connection plugs or spades so that they attach correctly to the original components in the freezer.

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