Bosch Washer Error Code F42: How to Fix It

Q: What causes Bosch washer error code F42?

F42 occurs when the motor spins too fast, usually due to a faulty tachometer (speed sensor), damaged motor control board, or worn motor components that affect speed regulation.

Q: Can I still use my Bosch washer with F42 error?

No, you should not use the washer with F42 error. The motor running too fast can cause severe damage to the motor, transmission, and other mechanical components.

Q: How much does it cost to fix Bosch washer F42 error?

Repair costs vary: tachometer replacement costs $50-100, motor control board replacement costs $200-400, and full motor replacement costs $300-600, plus labor if professionally installed.

Q: Is Bosch washer F42 error covered under warranty?

F42 error is typically covered under Bosch warranty if the washer is still within the warranty period, as it usually indicates a manufacturing defect in the control system or motor components.

Q: How do I prevent F42 error from happening again?

Prevent F42 by avoiding overloading the washer, using proper detergent amounts, keeping the washer level, and scheduling regular maintenance to check motor components and connections.

Abstract

Bosch washer error code F42 indicates the motor is spinning too fast, which means either the control board isn't regulating motor speed properly or the tachometer (speed sensor) has failed. This is a critical error that requires immediate attention to prevent motor damage.