BoilerFaultCodesBaxi Solo 3 PFL Fault codes & diagnostics
0 fault codes with plain-English explanations, severity ratings, DIY guidance, and repair cost estimates.
Regular Natural Gas 9-41 kW 2001-2010 Discontinued
Replaced by: Solo HE
The Solo 3 PFL range comes in 6 types
Pick the one you have. The fault codes, GC numbers and manual differ by type.
Each model has its own manual
The fault code is already on your display
Note it down before pressing reset — resetting clears the code immediately. How to read fault codes →
Status & diagnostic codes 6 operating states & engineer diagnostics
Not faults — these are normal operating states. Tap to expand.
6 operating states & engineer diagnostics
Not faults — these are normal operating states. Tap to expand.
30 Status The number 30 is not a fault code for your Baxi Solo 3, but rather indicates the boiler's power output rating of 30,000 Btu/h. 40 Status Your boiler has detected that it is not firing up correctly, usually because the pilot light has gone out or there is an issue with the ignition process. 50 Status Your Baxi Solo 3 boiler is not experiencing a fault code; rather, 50 is a capacity indicator confirming your boiler is the 50,000 Btu/h model version. 60 Status Your boiler has stopped working because it has detected a failure to ignite or maintain a flame. 70 Status The number 70 on your boiler is not a fault code, but a label indicating that your boiler is a 70,000 Btu/h model. 80 Status Your boiler has reached its maximum heat output capacity, meaning it is currently running at its highest intensity to meet the heating demand.