Official Jenn-Air chest freezer parts

JennAir 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.

What to do when the high-temperature alarm sounds on your JennAir chest freezer

The high-temperature alarm sounds when the temperature inside the freezer rises 15 degrees above the set temperature so that you can fix the cooling problem and prevent food spoilage. (The exact temperature rise that triggers the alarm varies by model.)

When you hear the alarm, check the freezer electrical outlet for power because the control uses a battery as back-up power to sound the alarm (on most models) when the outlet power fails. Restore power to the freezer by resetting the house circuit breaker for the electrical outlet and the freezer will resume cooling if a power failure caused the alarm.

If the alarm goes off and you hear the compressor running, a sealed system problem such as a refrigerant leak or a failed compressor pump may be causing the problem. Have a service technician examine the freezer if you suspect a sealed system failure. A service technician will need to diagnose and fix a sealed system failure because the repair involves the recovery and recharge of the refrigerant.