BoilerFaultCodesIdeal 9.1.30 Fault Code
Also written as 9130 — same fault.
The Ideal 9.1.30 fault code means: your boiler has stopped working because its internal pressure sensors have been plugged into the wrong sockets during a service or repair.. It appears on 2 Ideal models in our database.
Technical description: High Pressure Sensor and Low Pressure Sensor Wiring-Cross-Connection
What causes the Ideal 9.1.30 fault?
This fault occurs when the electrical wires for the boiler's internal high and low pressure sensors have been swapped or plugged into the wrong ports on the control board. It typically happens during a recent repair or service where the technician accidentally switched these identical-looking connections, leading the boiler to receive incorrect safety information. Because the system can no longer accurately monitor water pressure, it shuts down immediately as a safety precaution.
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 9.1.30 fault code
Click a model for the full fault code list and model-specific repair notes.
Source
Ideal 9.1.30 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