C6
Worcester Bosch fault code
Worcester Bosch C6: fan speed too low
Engineer only
The boiler has detected that its fan isn't running fast enough.
What you can safely do
There is nothing you can safely do yourself with this one. Leave the boiler off and book an engineer.
Call a Gas Safe engineer if
- Book a Gas Safe registered engineer.
Find a Gas Safe engineer near you
Opens the official Gas Safe Register search.
Applies to: Greenstar CDi Classic. Codes can differ between models, so check your manual.