BoilerFaultCodesIdeal 19 Fault Code
The Ideal 19 fault code means: your boiler has stopped working because the fan that helps remove waste gases is not spinning or communicating correctly with the system.. It appears on 2 Ideal models in our database.
Technical description: The fan is not functioning properly; check the connectors and the fuse of the transformer and check the voltage on the control panel connector.
What causes the Ideal 19 fault?
This fault happens when the boiler's internal computer tries to start the fan to clear out exhaust gases but detects that the blades aren't spinning. It is usually caused by a mechanical failure in the fan motor, loose wiring between the components, or a blown fuse that has cut off power to the fan. Without a working fan to safely remove fumes, the boiler will stay switched off 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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Gas Safe Register →Ideal models that show the 19 fault code
Click a model for the full fault code list and model-specific repair notes.
Source
Ideal 19 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