BoilerFaultCodesWorcester Bosch 56147 Fault Code
The Worcester Bosch 56147 fault code means: your boiler's internal pump or a control valve has been accidentally switched to a manual setting and is no longer being controlled automatically by the boiler.. It appears on 1 Worcester Bosch model in our database.
Technical description: Pump (SP) in manual mode. At least one pump/valve in manual mode
What causes the Worcester Bosch 56147 fault?
This fault occurs when a specific setting within the boiler's service menu has been manually adjusted, overriding the system's automatic control of the pump or valves. The most common reason is that a technician or user accidentally changed a configuration parameter during a service or while testing the system, leaving the component stuck 'on' or 'off'. Because the boiler's computer is no longer in control of these parts, it triggers this code as a safety and efficiency alert.
DIY fix possible
Navigate to the boiler's service menu using the display buttons.Locate the manual mode or 'Force' settings for the pump (SP).Change the setting from 'Manual' back to 'Auto' and confirm the selection.
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Gas Safe Register →Worcester Bosch models that show the 56147 fault code
Click a model for the full fault code list and model-specific repair notes.
Source
Worcester Bosch 56147 fault code information on this page is sourced and cross-checked against the official Worcester Bosch service / installation manuals for each affected model.
Reviewed by the BoilerFaultCodes Editorial Team · Last reviewed 27 April 2026