What the manual says
Manufacturer manualThe boiler is operating in domestic hot water preheat mode.
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We could not tie this code to a specific manual. Treat it as indicative only.
DIY fix possible
No action is required as this is a normal operational message.If you wish to stop this mode, locate the preheat button or setting on the control panel to toggle it off.Monitor the display to see it return to its normal status once the preheat cycle completes.
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Related fault codes
All 45 fault codes on the Instinct2 24
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