Step1: Disconnect electrical power completely and confirm the refrigeration system is off before servicing.
Step2: Remove the control panel and note wiring connections from the existing thermostat.
Step3: Carefully detach the old control, including capillary tube and mounting stem.
Step4: Install the new into the panel opening, securing the slot stem and knob assembly firmly.
Step5: Route the properly into the sensing area without sharp bends or contact with hot surfaces.
Step6: Reconnect wiring to terminals, restore power, and test temperature range for correct cycling.