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Worcester Bosch Boiler Fault Codes
Browse the available Worcester Bosch boiler fault codes in one place, then open the exact code page for the likely meaning, safe first steps, and when to stop troubleshooting.
Browse the parent brand page: Worcester Bosch
All fault codes in this cluster
18 code pages currently available for this brand and appliance cluster.
| Code | Meaning | Severity |
|---|---|---|
| 208 | A boiler sensor is giving an invalid reading | medium |
| 224 | System water pressure is too low | medium |
| 227 | System water pressure is too low | medium |
| 229 | The boiler has overheated or hit a high temperature limit | high |
| 232 | Flame detection has been lost during operation | high |
| 233 | Flame detection has been lost during operation | high |
| 268 | Water circulation or pump performance issue | high |
| 281 | A boiler sensor is giving an invalid reading | medium |
| 286 | Water circulation or pump performance issue | high |
| 295 | A boiler sensor is giving an invalid reading | medium |
| 296 | Flame detection has been lost during operation | high |
| 297 | Gas supply control or gas valve issue | high |
| A1 | Water circulation or pump performance issue | high |
| C6 | Fan, flue, or air pressure sensing problem | high |
| CE | Fan, flue, or air pressure sensing problem | high |
| D1 | Control board or internal communication fault | high |
| E9 | The boiler has overheated or hit a high temperature limit | high |
| EA | The boiler has failed to ignite properly | high |
Featured fault codes
208 meaning and fix
A boiler sensor is giving an invalid reading
224 meaning and fix
System water pressure is too low
227 meaning and fix
System water pressure is too low
229 meaning and fix
The boiler has overheated or hit a high temperature limit
232 meaning and fix
Flame detection has been lost during operation
233 meaning and fix
Flame detection has been lost during operation
268 meaning and fix
Water circulation or pump performance issue
281 meaning and fix
A boiler sensor is giving an invalid reading
286 meaning and fix
Water circulation or pump performance issue
295 meaning and fix
A boiler sensor is giving an invalid reading
296 meaning and fix
Flame detection has been lost during operation
297 meaning and fix
Gas supply control or gas valve issue