BoilerFaultCodesBaxi 134 Fault Code
The Baxi 134 fault code means: your boiler is displaying a general flashing error signal, meaning it has safely locked out and stopped working to prevent further issues.. It appears on 15 Baxi models in our database.
Technical description: Flashing error code
Engineer required
This fault requires a Gas Safe registered engineer. Do not attempt gas-related repairs yourself.
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A cover plan would handle faults like 134: no call-out fees, no surprise bills.
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Baxi models that show the 134 fault code
Click a model for the full fault code list and model-specific repair notes.
- 124 Combi Repair: £120-350
- 128 Combi Repair: £120-350
- 615 System 15 Repair: £90-250
- 618 SYSTEM Repair: £90-250
- 624 System 24 Repair: £90-250
- 818 System Repair: £120-£350
- 824 SYSTEM Repair: £120-£350
- Assure Repair: £120-250
- Duo-tec Combi GA Repair: £120-350
- Neta-tec Combi 24 GA
- Neta-tec Combi 28 GA
- Neta-tec Combi 33 GA
- PLATINUM COMPACT 25 COMBI Repair: £150-300
- PLATINUM COMPACT 30 COMBI Repair: £150-300
- PLATINUM COMPACT 36 COMBI Repair: £150-300
Source
Baxi 134 fault code information on this page is sourced and cross-checked against the official Baxi service / installation manuals for each affected model.
Reviewed by the BoilerFaultCodes Editorial Team · Last reviewed 31 August 2026