BoilerFaultCodesYour boiler has detected an electrical problem with the sensor that measures the temperature at the bottom of your solar hot water cylinder.
This is a minor fault. Keep an eye on it and mention it at your next annual boiler service. Reset the boiler and see if it clears.
Technical description: Temperature sensor T2 at bottom of solar cylinder faulty: Short circuit on the sensor lead (T2).
What causes this fault?
This fault occurs when the electrical signal from the temperature sensor at the base of your solar cylinder is interrupted or distorted. The most common reason is a physical short circuit in the wiring or a total failure of the internal components within the sensor itself, preventing the boiler from accurately monitoring solar heat levels.
Engineer required
This fault requires a Gas Safe registered engineer. Do not attempt gas-related repairs yourself.
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A boiler cover plan would cover faults like Fault 41 / 103 — no call-out fees, no surprises.
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