Worcester Bosch CE 207 Fault

Worcester Bosch CE 207 Fault

The Worcester Bosch CE 207 fault code indicates a communication error between the boiler’s main printed circuit board (PCB) and the control panel or user interface. This error can arise due to various reasons, including issues with the wiring connections, faults in the PCB itself, or problems with the control panel. Here’s how you can understand and potentially address the CE 207 fault code:

Causes of the CE 207 Fault Code

  1. Faulty Wiring Connections: Loose or damaged wiring between the PCB and the control panel can disrupt communication, leading to this fault code. Over time, connections can become loose due to the boiler’s normal operation and vibrations.
  2. PCB Issues: The printed circuit board is the “brain” of the boiler, controlling its functions and communication with the user interface. Faults or damage to the PCB can result in communication errors.
  3. Control Panel Problems: Issues with the control panel itself, such as malfunctions or damage, can also cause the CE 207 error code to appear, as the panel cannot properly communicate with the boiler’s main PCB.

Troubleshooting the CE 207 Fault Code

  1. Check Connections: The first step is to check the wiring connections between the PCB and the control panel. Ensure that all connections are secure and that there are no visible signs of damage or wear. However, this should ideally be done by a professional, as it involves interacting with electrical components.
  2. Reset the Boiler: Sometimes, a simple reset can clear temporary communication errors. Refer to your boiler’s manual for instructions on how to perform a reset safely.
  3. Inspect for Visible Damage: Look for any visible signs of damage to the control panel or the boiler that could be related to the fault. This includes checking for water damage, signs of burning, or other physical damage to the PCB or control panel.
  4. Professional Assessment: Diagnosing and repairing issues related to the PCB or control panel often requires technical expertise. A Gas Safe registered engineer can perform a thorough assessment to identify the root cause of the communication error and undertake necessary repairs or replacements.
  5. Consider PCB Replacement: If the fault is with the PCB, it may need to be replaced. PCB replacements should always be carried out by a qualified professional due to the complexity and safety concerns involved.


The CE 207 fault code on a Worcester Bosch boiler indicates a communication problem that can impact the boiler’s operation. Due to the technical nature of this issue, involving electrical components and the boiler’s internal control systems, it is strongly recommended to seek the assistance of a Gas Safe registered engineer to diagnose and resolve the issue safely and effectively. Regular maintenance and prompt attention to boiler faults can help prevent further complications and ensure the longevity and efficient operation of your heating system.