Bosch 12021387 Inverter (Motor Speed Control Board) OEM Part

Product Details

Genuine Bosch part. Bosch brands include Bosch, Thermador, Gaggenau, and others.

Cross Reference Information

Part Number 12021387 replaces AP6331071.

Description

This inverter is the electronic motor-speed control board that regulates power and variable speed to the appliance's motor for reliable operation. Replaces a failed inverter to restore drive/motor control. What it does:

• Converts and regulates incoming power to the motor for variable-speed operation
• Controls motor start/stop and speed changes during cycles
• Helps prevent motor stalling and uneven operation when functioning correctly
• Common symptom link: appliance won't start, motor hums, or motor does not reach proper speeds
• Associated with control or drive-related error codes

What's included: One inverter (motor speed control board) Install notes:

• Disconnect power before accessing or replacing the inverter to avoid shock
• Handle the board carefully and avoid bending or touching exposed components
• Observe basic ESD precautions (grounding) when handling electronic boards