BoilerFaultCodesWorcester Bosch 51132 Fault Code
The Worcester Bosch 51132 fault code means: your boiler has lost communication with the temperature sensor that monitors your hot water cylinder, meaning it may not know when to stop heating your water.. It appears on 1 Worcester Bosch model in our database.
Technical description: Temperature sensor type PTC 1000 used as cylinder temperature sensor (T2).
What causes the Worcester Bosch 51132 fault?
This fault occurs when the electrical connection between the boiler's control board and the hot water cylinder’s temperature sensor is broken or sending an incorrect signal. The most common reason is a failed internal component within the sensor itself or a wire that has become loose or damaged over time.
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 51132 fault code
Click a model for the full fault code list and model-specific repair notes.
Source
Worcester Bosch 51132 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