Possible Causes of F27 error:

• Faulty pressure sensor: 
  • The sensor itself might be malfunctioning, sending inaccurate or no signals to the control board.
• Blocked pressure sensor hose: 
  • The hose connecting the sensor to the drum could be clogged with debris, hindering accurate pressure readings.
• Loose hose connections: 
  • Leaks or loose connections in the hose can affect pressure readings and trigger the error.
• Control board error: 
  • Less commonly, a malfunction within the control board could misinterpret sensor signals, leading to the F27 error.

Important Note:

Due to the potential involvement of electrical components and delicate parts, it's strongly recommended to avoid any DIY troubleshooting for the F27 error. Improper handling could damage the machine, create electrical hazards, or even lead to water leaks.

Recommended Action:

1. Contact Bosch customer service immediately: Inform them of the F27 error code and your model number. They have expert knowledge and can:
   • Provide specific advice based on your machine and assess the severity of the issue.
   • Offer solutions like scheduling a qualified technician visit for safe diagnosis and repair.
   • Guide you on basic checks if deemed safe, such as inspecting for visible blockages in the pressure sensor hose area.
2. Do not attempt to reset the machine: While resets help with some errors, it's not recommended for F27 as it might not resolve the underlying problem and could even worsen it.

Additional Tips:

• Have your model number readily available: This helps Bosch customer service provide faster and more accurate assistance.
• Address potential leaks promptly: Don't ignore even minor leaks, as they can worsen over time and cause significant damage.
• Prioritize safety: Remember, safety is paramount. Leave the diagnosis and repair of the F27 error to qualified professionals to ensure your Bosch washing machine is fixed correctly and operates safely again.