This protector heater, also known as a high limit thermostat, is a genuine OEM part. Its function is to keep the heating coils from getting too hot by providing and automatic shutoff, which is an important safety feature in your appliance. When replacing the high limit thermostat, make sure to first unplug the appliance, and wear work gloves when completing the repair.
This centrifugal fan is a replacement airflow component designed to move air efficiently through internal systems. It supports cooling and ventilation and is commonly replaced when airflow weakens or abnormal noise develops.