E9
Worcester Bosch fault code
Worcester Bosch E9: the safety temperature limiter in the heating flow has tripped
Engineer only
The boiler's overheat safety device has tripped, so it has shut down. This is a safety shutdown that needs an engineer to find the cause.
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.