Plumbing, Heating & Boiler Parts
Technical review: 2026-08-20
Baxi Boiler Spares & Replacement Parts
Source genuine Baxi boiler replacement spares for Duo-tec, Platinum, and 600 series combi and system boilers across the UK.
Where to Find Your Model or Part Number
To guarantee 100% compatibility, check these standard locations for model badges, OEM stampings, and serial numbers:
- GC Number on the identification badge underneath the front casing drop-down panel (e.g. 47-075-35).
Frequently Replaced Components & Spares
Common Symptoms & Fault Diagnostics
| Observed Symptom | Likely Root Cause | Recommended Action |
|---|---|---|
| E133 or E119 error code on Baxi boiler | E119 indicates low system water pressure; E133 indicates flame lockout or gas supply interruption | Inspect and replace faulty component. |
Compatibility Verification Checklist
Before ordering replacement components, verify these technical specifications to avoid returns:
Confirm 7-digit Gas Council number and serial generation.
How to Photograph Your Part for AI Identification
- 1Photograph the GC badge and hydraulic manifold.
Safety & Legal Compliance Notice
Gas work requires a certified Gas Safe Registered professional.