Step1: Disconnect refrigerator power supply completely and ensure unit is securely unplugged before starting work.
Step2: Open the control compartment and expose the existing thermostat assembly.
Step3: Label and disconnect the purple and yellow lead wires from the old thermostat.
Step4: Remove the faulty thermostat and secure the new unit in the same mounting position.
Step5: Reattach the leads firmly, ensuring tight and correct electrical connections.
Step6: Restore power, run a cooling cycle, and confirm proper fan activation and shutdown response.