BoilerFaultCodesBiasi ER + 69 Fault Code
Also written as ER69 — same fault.
The Biasi ER + 69 fault code means: your boiler has detected an electrical configuration error and cannot operate safely, meaning you will have no heating or hot water until it is reset or repaired.. It appears on 5 Biasi models in our database.
Technical description: N/A
DIY fix possible
Locate the selector switch on the front control panelTurn the dial to the 'R' (Reset) position for five secondsTurn the dial back to the 'On' position and wait for the boiler to restart
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 ER + 69: no call-out fees, no surprise bills.
Affiliate links. We may earn a commission at no extra cost to you.
Biasi models that show the ER + 69 fault code
Click a model for the full fault code list and model-specific repair notes.
Source
Biasi ER + 69 fault code information on this page is sourced and cross-checked against the official Biasi service / installation manuals for each affected model.
Reviewed by the BoilerFaultCodes Editorial Team · Last reviewed 7 July 2026