E01-156 Emergency

Ideal E01-156 Fault Code

Also written as E01156 — same fault.

The Ideal E01-156 fault code means: your boiler has detected an issue with the fuel supply components specific to lpg operation, meaning it cannot safely ignite.. It appears on 6 Ideal models in our database.

Act immediately

Turn off your boiler and stop using gas appliances. Call a Gas Safe engineer now. This fault can be dangerous if ignored.

Technical description: Injectors for LPG (mod. miniHEC24 / miniHEC28)
Typical repair cost £150-300 (including labour)

Engineer required

This fault requires a Gas Safe registered engineer. Do not attempt gas-related repairs yourself.

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Ideal models that show the E01-156 fault code

Click a model for the full fault code list and model-specific repair notes.

Source

Ideal E01-156 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 7 July 2026