5 fault codes with plain-English explanations, severity ratings, DIY guidance, and repair cost estimates.
Replaced by: Capriz2
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 |
|---|---|---|
| 47-157-13 | Capriz 28 | 2008–2009 |
Appliance names and production years are taken from the UK Product Characteristics Database (the SAP/SEDBUK register). Where a GC number is also printed in this model's own manufacturer manual, both sources were checked to agree.
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Your boiler is trying to start up but cannot light the gas flame needed to produce heat.
Your boiler has lost the ability to accurately measure the water temperature, so it has safely shut down to prevent overheating.
Your boiler has stopped working as a safety precaution because it either failed to light or became too hot.
Your boiler has switched itself off because the water level inside the heating system has dropped too low to operate safely.
Your boiler has detected that it is getting dangerously hot and has automatically shut itself down to prevent damage.
Not faults — these are normal operating states. Tap to expand.
BoilerFaultCodes