What does the Worcester Bosch Greenstar CDi F93 fault code mean?
The F93 fault code on the Worcester Bosch Greenstar CDi indicates an issue with warranty claims, typically related to the boiler’s components or installation not meeting the manufacturer’s standards. This code suggests that the warranty may not be valid due to improper installation or use of non-genuine parts.
Common Causes
- Improper Installation: If the boiler was not installed according to the manufacturer’s guidelines, it may lead to warranty issues.
- Use of Non-Genuine Parts: Installing parts that are not approved by Worcester Bosch can invalidate the warranty and trigger this fault code.
Can I fix it myself? (DIY)
It is highly recommended to call a Gas Safe Engineer to address this issue, as it involves warranty claims and potentially unsafe conditions. Attempting to fix it yourself may void the warranty further.
Estimated Repair Cost (2026 UK Prices)
The estimated cost to resolve warranty-related issues can range from £100 to £300, depending on whether a Gas Safe Engineer needs to verify installation or replace non-genuine parts. This cost reflects the need for professional assessment and potential rectification of installation errors.