This replacement transformer cooling fan circulates air to keep the power transformer cooler, helping maintain reliable operation and reducing heat-related stress on electrical components. Fits applicable Bosch appliances that use the 00487021 fan. What it does:
- Circulates air around the power transformer to dissipate heat.
- Helps prevent transformer overheating and heat-related failures.
- Can reduce excessive humming or intermittent operation caused by a failing cooling fan.
- Restores proper airflow that keeps nearby electronics within intended temperature ranges.
What's included: One transformer cooling fan (single). Install notes:
- Always disconnect power to the appliance before beginning any repair.
- Remove access panels and mounting hardware to replace the fan; note wiring orientation for correct reconnection.
- Handle the fan motor and blades carefully; avoid bending blades or damaging the connector.