Parts for Thermador CM302B: 03 - Upper Plenum Parts

This cooling fan assembly mounts inside the oven housing and circulates air to prevent the control panel and surrounding cabinetry from overheating during use. It typically runs during and after the oven's heating cycle to dissipate excess heat. Replace this assembly if the fan is noisy, doesn't spin, or if your oven's electronic controls are shutting down due to overheating.

Oven not heating or overheating? A faulty thermostat disrupts temperature regulation. This replacement restores accurate oven temperature control.

This door switch interlock assembly is the door latch switch that detects and secures the dishwasher door so cycles can start and run safely. It restores proper door sensing and locking for normal operation. What it does:

• Detects when the dishwasher door is fully closed so the control will allow a wash cycle to start.
• Locks or interlocks the door during operation to prevent accidental opening and stop leaks.
• Helps resolve symptoms such as the dishwasher not starting, control lights flashing, or cycles stopping when the door is closed.
• Works as the electrical/mechanical interface between the door and the appliance control.

• One door switch interlock assembly

• Disconnect power to the appliance (unplug or shut off breaker) before beginning repair.
• Remove the dishwasher door panel or access panels as required to reach the latch; keep screws/fasteners organized.
• Align and secure the new interlock assembly and test door engagement and cycle start before reassembly.

Fix a loud humming or buzzing noise from your wall oven control panel. This low-voltage transformer powers the control board and related circuits.

This is a thermal fuse designed to protect the microwave's electrical circuit from overheating. It acts as a safety device that breaks the circuit if internal temperatures exceed safe limits. Replace this fuse if your microwave suddenly stops working or loses all power, as a blown thermal fuse is a common cause of a completely dead unit.

Replace a failed transformer cooling fan motor causing overheating issues. Circulates air to keep electrical components cool and maintain reliable operation.

This air interlock is the airflow switch that helps monitor and control dryer vent airflow, ensuring the appliance only runs when proper air movement is detected. It replaces a worn or failed interlock to restore normal vent sensing. What it does:

• Senses airflow through the vent and signals the control system to allow or stop operation
• Prevents dryer from starting or continuing a cycle when airflow is restricted
• Common symptom: dryer fails to start, stops mid-cycle, or shows poor drying performance
• Can help address intermittent operation caused by a faulty vent sensing switch

• Disconnect power before servicing to avoid electrical shock
• Handle the switch and wiring gently; verify connector orientation before reinstalling
• Confirm venting is clear and intact when replacing this part

This is a high voltage capacitor used in the electronic control or microwave cooking section of a range or oven. It stores and releases electrical energy to help power components that require high voltage. Replace this capacitor if the oven or range displays error codes, fails to heat properly, or if the control board is malfunctioning due to a faulty capacitor.

Microwave not heating? A failed diode rectifier prevents proper power flow to the magnetron. This one-way current component is essential for heating function.

This is a fan blade used in the convection or cooling fan assembly of an oven or range. It circulates hot air throughout the oven cavity to ensure even cooking temperatures. Replace this blade if it is cracked, warped, or broken, or if you notice uneven cooking, unusual rattling noises, or the fan not moving air properly.