BoilerFaultCodesWorcester Bosch 360 V Fault Code
Also written as 360V — same fault.
The Worcester Bosch 360 V fault code means: your boiler's internal computer has lost communication with its identification chip or the chip installed is the wrong model for this unit.. It appears on 10 Worcester Bosch models in our database.
Technical description: Incompatible code plug – check if a correct code plug is installed and exchange or reconnect code plug
What causes the Worcester Bosch 360 V fault?
This fault occurs when the boiler's main control board cannot communicate with a small, specific electronic chip called a code plug, which tells the boiler exactly which model it is. The most common reason is that the plug has become loose due to vibrations or has suffered an internal electronic failure. In some cases, this happens during a repair if an incorrect replacement part has been installed.
Engineer required
This fault requires a Gas Safe registered engineer. Do not attempt gas-related repairs yourself.
Find a Gas Safe engineer
Search the official register for a qualified engineer in your area.
Gas Safe Register →Worcester Bosch models that show the 360 V fault code
Click a model for the full fault code list and model-specific repair notes.
Source
Worcester Bosch 360 V 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