Step1: Turn off power and unplug unit before beginning installation to avoid electrical shock.
Step2: Remove access panel and place existing thermostat assembly inside the control compartment.
Step3: Disconnect wiring from old unit, labeling terminals to ensure correct reconnection later.
Step4: Mount new thermostat assembly securely using original screws and fittings.
Step5: Reconnect wiring to matching terminals and ensure all connections are tight and insulated.
Step6: Restore power, test digital control response, and check temperature accuracy.