Atag Block 60 Fault Code
Also written as BLOCK60 — same fault.
The Atag Block 60 fault code means: your boiler’s internal computer settings have been incorrectly adjusted, which is preventing it from knowing how much power it should use to operate safely.. It appears on 8 Atag models in our database.
Technical description: Incorrect parameter setting of the minimum or maximum power.
Engineer required
This fault requires a Gas Safe registered engineer. Do not attempt gas-related repairs yourself.
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Gas Safe Register →Atag models that show the Block 60 fault code
Click a model for the full fault code list and model-specific repair notes.
Source
Atag Block 60 fault code information on this page is sourced and cross-checked against the official Atag service / installation manuals for each affected model.
Reviewed by the BoilerFaultCodes Editorial Team · Last reviewed 27 April 2026