Parts for Thermador KBUIT4875E01: Duct Assy 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".

The Fan Motor is an OEM replacement part for Bosch refrigerators. It circulates cold air inside the insulated liner maintaining precise temperatures. Unhindered airflow locks in freshness. 

Causes of a bad fan motor involve enduring years of constant rotation which stresses motor windings and bearing surfaces beyond rated lifetimes. Vibration and ambient heat accelerate breakdowns.

Symptoms of a bad fan motor include:  

• Loss of desired cooling capacity as air fails to circulate    
• Temperature fluctuations that compromise perishables  
• Audible grinding or rattling from within the fridge's interior
• Failed fan blades detaching pose potential fridge hazards

This OEM Bosch part is also compatible with Thermador, Gaggenau, and some Kenmore models.

This fan blade replaces a damaged or worn blower blade to restore proper airflow and reduce noise. It helps the appliance circulate air efficiently so cooling and ventilation perform as intended. What it does:

• Moves air across the evaporator/heatsink or within the appliance cabinet to support cooling and ventilation
• Restores full airflow when the original blade is cracked, warped, or missing
• Helps reduce rubbing, vibration, and unusual fan noise caused by damaged blades
• Prevents motor strain that can occur when an imbalanced or broken blade is used

• Disconnect power to the appliance before beginning any repair
• Handle the blade carefully to avoid bending the impeller fins
• Inspect the motor shaft, set screw, and mounting hardware; replace any damaged fasteners

This replacement duct routes exhaust airflow in the appliance, restoring proper venting and helping the appliance remove steam, smoke, or odors efficiently. It replaces a damaged or missing duct to re-establish the correct airflow path. What it does:

• Directs exhaust air from the appliance to the vent outlet
• Replaces cracked, crushed, or disconnected ductwork that can restrict airflow
• Helps reduce buildup of moisture, odors, and cooking byproducts when functioning properly
• Commonly replaced when exhaust is noisy, weak, or misdirected

• One duct

• Turn off power to the appliance before servicing to prevent shock or injury
• Inspect surrounding seals and fasteners; replace any damaged clips or gaskets for a proper fit
• Verify correct orientation and secure all connections to prevent leaks

The Thermistor is an OEM part for Bosch refrigerators. It monitors the temperature inside the refrigerator and communicating it to the control board. The thermistor plays a vital role in maintaining the optimal cooling performance and ensuring food is stored at a safe and proper temperature.

Causes of a bad thermistor can include failure due to age, exposure to excessive heat or cold, or damage from impact or moisture.

Symptoms of a bad thermistor include:

• Inconsistent or fluctuating interior refrigerator temperature
• The refrigerator failing to cool properly
• Error codes or fault messages showing on the control panel

This genuine OEM Bosch part is also compatible with Thermador, Gaggenau and select Kenmore models.

This bi-metal defrost thermostat controls the refrigerator's defrost cycle by opening or closing the circuit to the defrost heater, helping remove frost buildup and protect the heater from overheating. What it does:

• Opens the defrost heater circuit when the evaporator reaches the correct temperature to stop heating
• Closes the circuit at colder temperatures so the heater can run during a defrost cycle
• Helps prevent excessive frost buildup that can reduce cooling performance
• Commonly replaced when the defrost cycle fails to start or will not end properly

• One defrost bi-metal thermostat

• Disconnect power to the appliance before servicing to avoid electrical shock
• Located near the evaporator/heater assembly; access may require removing panels or the evaporator cover
• Handle carefully to avoid bending terminals or damaging the sensor element
• Test for continuity before replacement