Brand hub
Baxi Fault Codes
Use this Baxi boiler hub to check fault meanings, user-safe steps, and when a qualified engineer is needed. Use this hub to move into the right appliance section, then open the exact fault code page for quick meaning, safe first checks, and escalation advice.
Appliance hubs
1
Fault code pages
20
Guides linked in
2
Appliance types
Global appliance category hubs
Most searched fault codes
Most common fault families
PCB and control (6)
sensor (4)
fan and flue (2)
low-pressure (2)
overheat (2)
circulation (1)
Popular priority codes
E110 for Boiler
the boiler has overheated or reached a high-temperature safety limit.
E131 for Boiler
the boiler has locked out after an overheating or high-temperature condition.
E160 for Boiler
the boiler has detected a fan or air-pressure related fault.
133 for Boiler
The boiler has locked out after failing to light
125 for Boiler
Water circulation or pump performance issue
128 for Boiler
Flame detection has been lost during operation
130 for Boiler
Fan, flue, or air pressure sensing problem
E50 for Boiler
Control board or internal communication fault
E55 for Boiler
Control board or internal communication fault
E78 for Boiler
Control board or internal communication fault
E96 for Boiler
Control board or internal communication fault
E97 for Boiler
Control board or internal communication fault
Related guides
Practical background guides connected to this brand's fault-code pages.
Boiler Fault Codes: When to Stop and Call a Professional
Boiler issues need a more cautious approach than most white goods, especially where gas, combustion, or repeated lockouts are involved.
Why Your Boiler Keeps Losing Pressure
Learn the difference between a one-off pressure drop and repeated pressure loss, plus the safe top-up and recheck advice that stays within normal user controls.