6 fault codes with plain-English explanations, severity ratings, DIY guidance, and repair cost estimates.
Replaced by: Solo 3 HE
The fault code is already on your display
Note it down before pressing reset — resetting clears the code immediately. How to read fault codes →
The GC number on your boiler's data badge identifies the exact appliance and production years, as recorded in the UK Product Characteristics Database.
| GC number | Appliance (register name) | Produced |
|---|---|---|
| 41-075-04 | Solo PF 3 30 | 1999–2001 |
| 41-075-05 | Solo PF 3 40 | 1999–2001 |
| 41-075-06 | Solo PF 3 50 | 1999–2001 |
| 41-075-07 | Solo PF 3 60 | 1999–2001 |
| 41-075-08 | Solo PF 3 70 | 1999–2001 |
| 41-075-09 | Solo PF 3 80 | 1999–2001 |
Tap any card for details
Your boiler has failed to ignite because the internal flame sensor is not detecting a steady burn.
Your boiler has detected that it is getting too hot and has automatically switched itself off to prevent any damage or safety issues.
Your boiler has detected an issue with the valve that regulates the gas flow, meaning it cannot safely ignite or maintain a flame to heat your home.
Your boiler has detected that the internal exhaust system is not working correctly, so it has safely shut down to prevent unsafe gases from building up.
Your boiler has automatically turned itself off because it became too hot, acting as a safety measure to prevent damage.
Your boiler has switched itself off because it has detected that it is getting too hot, likely due to a circulation issue.
Not faults — these are normal operating states. Tap to expand.
BoilerFaultCodes