BoilerFaultCodesWhat the manual says
Manufacturer manual2x Switched Live Mode selected.
From this model's manual
Verified against the Ideal Logic Max System installation & service manual.
What causes this fault?
This fault occurs when the boiler receives an electrical command to turn on from two different external sources at the same time, which confuses the system's logic. The most common reason is that the external thermostat or programmer has been wired into two separate terminals on the circuit board by mistake. It can also happen if a faulty smart home controller is sending conflicting signals to the boiler.
Engineer required
This fault requires a Gas Safe registered engineer. Do not attempt gas-related repairs yourself.
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