4 fault codes with plain-English explanations, severity ratings, DIY guidance, and repair cost estimates.
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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 |
|---|---|---|
| 47-970-22 | Garda M90F. 32S | 2003–2007 |
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 struggling to detect water flowing properly through its internal heating system, which temporarily stops it from working.
Your boiler is failing to detect the flow of water needed to provide hot water or heating.
Your boiler has detected a problem with the internal hot water heat exchanger, which means you may have no hot water running through your taps.
Your boiler has detected an issue with the domestic hot water heat exchanger, which usually results in a loss of hot water or improper water temperature regulation.
BoilerFaultCodes