Step1: Disconnect power supply and ensure the oven or cabinet is fully cooled before servicing.
Step2: Remove the control panel to access the thermostat and capillary probe inside the unit.
Step3: Label and disconnect wiring terminals and gently withdraw the sensing bulb from its mounting.
Step4: Install the new thermostat, route the capillary tube in the same path, and secure the bulb in position.
Step5: Reconnect wiring, reassemble the panel, restore power, and test temperature control accuracy.