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Find practical help for Saunier Duval boiler fault codes and common heating issues. Learn what each error means and how to fix it fast at home when possible. Perfect when your boiler has stopped working and you need a simple, clear solution.
The F13 code usually points to the electronic board, although it can also come from sensors, relays, or connections.
F5 usually indicates overheating or a drainage fault. Key points to detect it and act safely.
A safety shutdown related to the flame can have simple causes or require technical inspection. These are the key points.
The F1 fault usually points to an ignition, gas, or flame detection problem. Here’s what you should check.
The F28 code usually points to an ignition failure, but its causes are multiple and it is advisable to check several components.
The boiler locks out due to a flame detected at the wrong time. This is how the fault behaves and what to check logically.
Code 17 indicates a communication failure linked to the electrical voltage and internal control.
What to do when the error appears: Communication defect
What to do when the error appears: Flame detection failure (flame> 5 sec. After burner stop)