Frigidaire refrigerators are equipped with an electronic control panel to adjust various settings on the appliance, including the temperature in the refrigerator and the freezer. Pressing certain buttons in tandem causes the electronic circuitry to enter diagnostic mode, which enables you to check different appliance functions and troubleshoot for problems. No special tools are required to enter the diagnostic mode, which displays information on the front LED panel for easy viewing.
Press and hold the "Freezer Temperature UP" and the "Freezer Temperature DOWN" buttons at the same time.
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Release and press the buttons together twice more within five seconds to enter the diagnostic mode to test the Frigidaire.
Press the "Freezer Temperature UP" button when the LED displays "1" to toggle through the different service menu tests, which are numbered 1 through 8.
Push the "Fresh Food Temperature UP" button after selecting a service test to scroll through the options for that particular test.
Unplug the Frigidaire power cord for 30 seconds and reconnect to exit the diagnostic mode.