Ideal 5980 Fault Code
The Ideal 5980 fault code means: your boiler has detected an external signal error, likely from an add-on device or a communication fault between the boiler and its smart control system.. It appears on 1 Ideal model in our database.
Technical description: Function input EX1 Error/alarm message
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 5980 fault code
Click a model for the full fault code list and model-specific repair notes.
Source
Ideal 5980 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