BoilerFaultCodesECA E01 Fault Code
The ECA E01 fault code means: your boiler has failed to light because it cannot detect a gas supply or a flame, resulting in the system shutting down for safety.. It appears on 4 ECA models in our database.
Technical description: Ignition Fault (lockout) — no gas connection; check gas valve is open; check gas in installation; press Reset; if persists notify ECA authorised service
DIY fix possible
Check that your gas meter is topped up and the emergency control valve is in the 'on' positionVerify if other gas appliances in your home, such as a hob, are working correctlyPress and hold the 'Reset' button for 3 to 5 seconds to clear the fault
Find a Gas Safe engineer
Search the official register for a qualified engineer in your area.
Gas Safe Register →Avoid the next call-out bill
A cover plan would handle faults like E01: no call-out fees, no surprise bills.
Affiliate links. We may earn a commission at no extra cost to you.
ECA models that show the E01 fault code
Click a model for the full fault code list and model-specific repair notes.
Source
ECA E01 fault code information on this page is sourced and cross-checked against the official ECA service / installation manuals for each affected model.
- ECA Confeo Premix HCH manual (PDF)
- ECA Confeo Premix HM manual (PDF)
- ECA Confeo Premix HST manual (PDF)
Reviewed by the BoilerFaultCodes Editorial Team · Last reviewed 7 July 2026