Official Northland upright freezer parts

What to do when the high-temperature alarm sounds on your Northland upright 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.

Frequently-replaced parts in Northland upright freezers

• Door switch. The door switch turns the freezer light on and off and monitors door position. Replace the door switch if it doesn't work.
• Door gasket. The door gasket is a flexible seal that attaches to the outer edge of the freezer door to form an air tight seal around the door opening. The door gasket prevents warm, moist air from leaking into the freezer compartment when the door is shut.
• Control panel. The control panel houses the selection buttons and the display for the freezer. The control panel connects to the electronic control board through a wire cable that communicates button presses and display functions.
• Electronic control board. The freezer electronic control board controls the major electro-mechanical components in the freezer. When the electronic control board senses the compressor needs to run to cool the freezer, it sends voltage to the compressor and fans. It then receives input from temperature sensors to monitor the temperatures inside the freezer. With this information, the electronic control board controls the defrost cycle.