Bosch Refrigerator KKU33800 Parts

This temperature limiter safeguards the evaporator defrost heater by opening the circuit if temperatures rise too high. Replacing a failed limiter restores defrost safety and helps prevent frost buildup and inconsistent cooling performance.

• Protects the defrost circuit by cutting power to the evaporator heater when an over-temperature condition is detected
• An open/failed limiter prevents the heater from energizing, causing frost accumulation on the evaporator and warm refrigerator temps
• Designed to be installed in the original location and orientation for accurate temperature sensing

• Disconnect power before servicing; evaporator fins and sheet metal are sharp—use cut-resistant gloves
• Access the evaporator compartment and note the limiter's original mounting and wire routing before removal
• Transfer any clips/insulation sleeves and reconnect wiring to the same terminals; do not bypass this safety device
• Reassemble, restore power, and monitor for normal defrost operation

This is a filter drier used in the sealed refrigeration system to remove moisture and contaminants from the refrigerant lines. It is a small cylindrical component typically located along the refrigerant tubing between the condenser and the capillary tube. Replace this part if the refrigerator or freezer is not cooling properly due to a restricted or saturated drier, typically during a sealed system repair.

Fixes incorrect temperature readings or frequent cycling. This thermistor monitors compartment temp for proper cooling. Moderate DIY repair, 30-45 minutes.