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FD231Quick answer
On Worcester Bosch boilers, fault code FD 231 means: Power supply interrupted. Usually yes, once you have fixed the simple cause below (for example topping up the pressure) and reset the boiler.
Smell gas? Don't use switches or flames, open windows, close the gas valve, leave the building and call your gas emergency number. Never open the boiler casing yourself.
Can I keep using the boiler?
Severity: Low
Usually yes, once you have fixed the simple cause below (for example topping up the pressure) and reset the boiler.
Common causes
- Unstable mains power or a loose plug/socket
How to fix it
- Plug directly into a wall socket (no extension lead) and check your power supply
- Press the boiler's reset button once and wait for it to restart
Frequently asked questions
What does Worcester Bosch error FD 231 mean?
On Worcester Bosch boilers, fault code FD 231 means: Power supply interrupted.
How do I fix Worcester Bosch error FD 231?
Start with these steps: Plug directly into a wall socket (no extension lead) and check your power supply; Press the boiler's reset button once and wait for it to restart.
Is it safe to use the boiler with fault FD 231?
Severity: Low. Usually yes, once you have fixed the simple cause below (for example topping up the pressure) and reset the boiler.