Step1: Shut off gas and electrical supply and let the range cool completely, wear protective gloves.
Step2: Remove control panel to access thermostat and sensing bulb assembly.
Step3: Label and disconnect wiring terminals to avoid incorrect reconnection.
Step4: Remove old thermostat and mount the new unit securely in place.
Step5: Insert sensing bulb into the tube or well without kinks or strain.
Step6: Reconnect wiring, restore gas and power, then test ignition, temperature control, and safety cutoff operation.