Freezer cycles on and off rapidly or randomly; temperature fluctuates widely.

Safety first: Unplug the freezer before accessing the control panel or wiring.

Steps to stabilize cycling:

• Check power quality: Avoid using extension cords or power strips. Plug directly into a properly grounded outlet.
• Inspect temperature sensor: Locate the cabinet sensor and ensure it is firmly mounted and not touching extremely cold surfaces. Check wiring for damage.
• Test sensor: Measure resistance and compare to expected values. Replace the cabinet temperature sensor if readings are unstable or out of range.
• Control board replacement: If the sensor is good but the compressor and fan cycle erratically, replace the main control board.

Note: Some cycling is normal as the unit maintains temperature, but rapid short cycling can damage the compressor over time.