BoilerFaultCodesTechnical description
Dry fire
What causes this fault?
This fault occurs when the heat exchanger gets too hot because water isn't moving through the unit quickly enough to carry the heat away. The most common reasons are a failed internal pump that has stopped spinning or a blockage in the system caused by a buildup of sludge and debris.
This fault often appears when the heating is first turned on in autumn, as the pump can seize up after being inactive over the summer months.
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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