Step1: Turn off power and unplug toaster appliance; check no voltage using tester and lockout if applicable
Step2: Remove access panel and note existing wiring layout carefully; label wires if needed
Step3: Disconnect old relay wires and mount in same position; matching original configuration
Step4: Connect new relay terminals per wiring diagram ensuring tight secure connections; follow manufacturer diagram exactly
Step5: Reassemble, restore power, test operation while monitoring for heat or arcing; ensure safe cooldown period