Amana freezer display shows L1 or LO and the interior temperature is extremely cold, sometimes causing items to freeze harder than normal or frost on packages.

Safety: Unplug the freezer before accessing controls or sensors.

Steps:

• Check temperature setting: Ensure the setpoint is not at the coldest setting. Adjust to a mid-range setting and monitor for 24 hours.
• Inspect thermistor: Test the cabinet thermistor for proper resistance at known temperatures. Replace if out of specification.
• Observe compressor operation: If the compressor runs nearly constantly even after adjusting the setpoint, the control board may not be cycling it off.
• Control board replacement: If the thermistor is good and the compressor never shuts off, replace the main control board, as the compressor relay may be stuck closed.

Note: Overcooling can increase energy use and cause excessive frost; correct promptly.