BoilerFaultCodesTechnical description
Maximum ignition time
What causes this fault?
This fault occurs when the boiler's internal safety system detects that the gas has failed to ignite within the safe time limit allowed. The most common reasons are that the spark electrode is too worn to create a flame, or the gas valve isn't opening correctly to let fuel into the burner. In some cases, it can also be caused by a blockage in the flue or a fault in the main control board failing to send the ignition signal.
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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