BoilerFaultCodesWhat the manual says
Manufacturer manualSensor fault S5.
From this model's manual
Verified against the Intergas Xclusive installation & service manual, page 64.
What causes this fault?
This fault occurs when the boiler's internal control system loses communication with the S5 temperature sensor or receives an incorrect reading. The most common reason is a physical failure of the sensor's internal components or a loose connection in the wiring harness that links the sensor to the main control board.
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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