What it means
Baxi's EcoBlue Advance Combi manuals list 151 as flame failure. On the older Platinum 2 Combi GA, 151 means an internal circuit board fault instead, so check your own manual.
What to check, in order
- Check you have gas
Do your other gas appliances work, and does a prepayment meter have credit?
- Reset if the reset symbol shows
Baxi's EcoBlue Advance guide says to hold Reset for 2 seconds. If a spanner symbol shows instead, it needs an engineer.
When to call a Gas Safe engineer
If the fault keeps coming back or the spanner symbol shows, call a Gas Safe registered engineer.
Quick answers
What does the Baxi E151 fault code mean?
The burner flame failed or wasn't detected, so the boiler stopped. Baxi's EcoBlue Advance Combi manuals list 151 as flame failure. On the older Platinum 2 Combi GA, 151 means an internal circuit board fault instead, so check your own manual.
Can I fix Baxi E151 myself?
Easy (about 10 minutes). Start with: check you have gas; reset if the reset symbol shows. If the fault keeps coming back or the spanner symbol shows, call a Gas Safe registered engineer.
Is Baxi E151 worth repairing?
Usually free. Often the gas supply. If it keeps coming back, an engineer needs to check the ignition.
Checked against
Last reviewed October 2026. Manufacturers update their pages, and your manual is the final word. Spotted a mistake? Email contact@appliance-error-codes.com.