Find your boiler brand below to diagnose error codes instantly. Our comprehensive guides cover every major manufacturer with step-by-step solutions for common faults.
Boiler showing an error code? Don’t panic. Most fault codes indicate simple issues that can be resolved quickly – some you can fix yourself, others require a Gas Safe engineer.
Select your boiler brand below to access:
✓ Complete fault code lists for your model
✓ Clear explanations of what each code means
✓ Step-by-step DIY fixes where safe
✓ Guidance on when to call a professional
Click your boiler manufacturer below
Search the fault code showing on your boiler
Follow our safe guidance to resolve the issue
