Step1: Disconnect electrical power to the equipment before servicing.
Step2: Remove the control panel or access cover to reach the temperature control assembly.
Step3: Label and disconnect the wires from the existing temperature control.
Step4: Remove the mounting hardware and carefully take out the old control.
Step5: Install the new temperature control in the same position and secure it firmly.
Step6: Reconnect all wires to the correct terminals according to the wiring diagram.
Step7: Reinstall the access cover, restore power, and test temperature adjustment and control operation.