BoilerFaultCodesTechnical description
Outlet probe with contact open
What causes this fault?
This fault occurs when the boiler's control board loses communication with the sensor responsible for monitoring the temperature of the water leaving the unit. The most common reason is that the sensor has developed an internal electrical failure or the wiring connecting it to the main circuit board has become loose or damaged. Without this data, the boiler shuts down as a safety precaution to prevent the system from overheating.
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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