Low
3.1 on Worcester Bosch TA 211 E

Your boiler is struggling to accurately read the outdoor temperature, which may cause your heating system to run inefficiently or at the wrong temperature.

Monitor it

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

Measured Values, Outside Temperature Sensor AF: – 20 °C = 2392 W/2.64 V, – 16 °C = 2088 W/2.49 V, – 12 °C = 1811 W/2.33 V, – 8 °C = 1562 W/2.16 V, – 4 °C = 1342 W/1.99 V, 0 °C = 1149 W/1.82 V, 4 °C = 984 W/1.65 V, 8 °C = 842 W/1.49 V, 12 °C = 720 W/1.34 V, 16 °C = 616 W/1.20 V, 20 °C = 528 W/1.07 V, 24 °C = 454 W/0.95 V

Engineer required

This fault requires a Gas Safe registered engineer. Do not attempt gas-related repairs yourself.

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