Step1: Disconnect power at breaker and check supply is fully off before servicing.
Step2: Remove old heater and safely disconnect terminals, labeling wires for reference.
Step3: Clean mounting surface in the area, removing debris and grease.
Step4: Position new heater and secure it using mounting hardware, ensuring flat contact.
Step5: Reconnect terminals per original wiring diagram, ensuring tight and insulated connections.
Step6: Restore power, test heating operation, and monitor for overheating or loose connections.