BoilerFaultCodesIdeal E22 Fault Code
The Ideal E22 fault code means: your boiler's internal computer brain has lost its configuration settings and needs a professional to reset or replace it.. It appears on 6 Ideal models in our database.
Technical description: Parametrizing error (PCB)
What causes the Ideal E22 fault?
This fault occurs when the boiler's main control board suffers a memory glitch or software failure, causing it to 'forget' how it should operate. This is often triggered by sudden electrical fluctuations, such as a power surge or a failing internal wire harness that disrupts the data flow to the computer chip.
Engineer required
This fault requires a Gas Safe registered engineer. Do not attempt gas-related repairs yourself.
Find a Gas Safe engineer
Search the official register for a qualified engineer in your area.
Gas Safe Register →Ideal models that show the E22 fault code
Click a model for the full fault code list and model-specific repair notes.
Source
Ideal E22 fault code information on this page is sourced and cross-checked against the official Ideal service / installation manuals for each affected model.
Reviewed by the BoilerFaultCodes Editorial Team · Last reviewed 27 April 2026