Firebird Firebird Fault Codes

Oil Oil

The fault code is already on your display

Note it down before pressing reset — resetting clears the code immediately. How to read fault codes →

Most common fault codes

Code	Severity	Plain English	DIY
E1	High	Your boiler has lost its ability to accurately measure temperature, causing it to shut down to prevent overheating.	Engineer
E2	High	Your boiler has detected a problem with the sensor that monitors the temperature of the exhaust gases, causing the system to shut down for safety.	Engineer
E3	High	Your boiler has detected a problem with the sensor that monitors the temperature of the exhaust gases, causing the system to shut down for safety.	Engineer
E5	High	Your boiler's burner has stopped working and has gone into a safety lockout mode.	Yes

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