BoilerFaultCodesWhat the manual says
Manufacturer manualNo DHW heating - Cylinder temperature sensor 2/outlet sensor lead break
What causes this fault?
This fault occurs when the boiler loses its connection to the sensor responsible for monitoring the hot water storage temperature. The most common reason is a physical failure of the internal sensor probe or damage to the wiring harness, causing an electrical 'break' that prevents the control board from receiving data.
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.
Avoid the next call-out bill
A cover plan would handle faults like 59: no call-out fees, no surprise bills.
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Related fault codes
All 75 fault codes on the Vitodens 333-F
Seeing a different code? Every code this model can display, in one place.