Parts for Thermador KBUIT4855E/03: Compressor / Control Board / Condenser Parts

This Bosch filter removes contaminants and improves water taste. The filter should be changed every six months for best performance. Simple installation requires no special tools. Measures approximately 13.25" x 2.5" x 2.5".

This inverter motor control board manages variable motor speed to enable smooth, efficient operation of the appliance. Replaces a failed inverter to restore proper motor control and reduce erratic motor behavior. What it does:

• Controls variable-speed motor operation and converts power for the motor drive
• Helps maintain steady motor speed during cycles for consistent performance
• Often replaces a faulty inverter causing motor stalls, error codes, or loss of drive
• Can resolve intermittent operation, humming, or motors that won't start

• Disconnect power before attempting replacement to avoid shock or damage
• Handle the control board by its edges and avoid touching components or connectors
• Verify connector alignment and secure mounting; confirm all wiring matches original
• If you see corrosion or other damaged wiring, inspect and repair harnesses before powering up

The Compressor is an OEM part for Bosch refrigerators. This part is responsible for maintaining the desired temperature inside your refrigerator by compressing and circulating refrigerant throughout the cooling system.

A bad compressor can occur due to electrical malfunctions, mechanical failures, or normal wear and tear over time. Signs of a faulty compressor include inadequate cooling, unusual noises coming from the refrigerator, or the refrigerator not turning on at all.

Symptoms of a bad compressor include:

• Inadequate cooling 
• Unusual noises 
• The refrigerator not turning on  

Replace your faulty compressor with this genuine OEM Bosch part to restore your refrigerator. This Bosch part can also be used on Thermador and Gaggenau appliances.
 

This electronic control unit is the main circuit board that manages appliance functions and user controls, restoring proper cycle selection and electronic operation when the original board fails. What it does:

• Receives inputs from buttons, knobs, or touch controls and runs selected cycles
• Communicates with sensors and actuators to coordinate pumps, valves, motors, or heaters
• Regulates power distribution to electronic components and user-interface displays
• Common symptoms: appliance won't respond to controls, display errors or blinking lights, or cycles fail to start/complete

• One control unit (electronic control board)

• Disconnect power at the breaker or unplug the appliance before beginning work
• Handle the board as an electrostatic-sensitive device; ground yourself to avoid damage
• Some installations are plug-and-play; others require panel removal and screw fasteners.

This replacement fan motor circulates air inside the appliance to maintain proper airflow and temperature. Use it to restore normal cooling and ventilation when the original motor fails or runs intermittently. What it does:

• Drives the appliance fan blade to move air for cooling, defrosting, or venting
• Commonly replaces motors that hum, run slowly, or won't start
• Helps stop uneven temperatures, inadequate cooling, or frost buildup caused by poor airflow
• May reduce abnormal vibration or noise when the motor has worn bearings

• Disconnect power to the appliance before starting any repair
• Handle the motor and wiring carefully; match connectors exactly to avoid damage
• This part may require removing panels, brackets, or the fan blade for access—keep fasteners organized