BoilerFaultCodesTechnical description
Led alarm (red)
What causes this fault?
This fault occurs when the boiler fails to detect a flame after several ignition attempts, causing the system to shut down for safety. The most common reasons are a lack of gas supply to the unit, a blocked burner, or a faulty sensor that cannot confirm the flame is lit. It can also be caused by worn-out electrical components that are responsible for creating the initial spark.
Engineer required
This is a high severity fault. Stop using the boiler and call a Gas Safe registered engineer. Do not attempt gas-related repairs yourself.
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