High
260 on Worcester Bosch Heatslave

Your boiler has fired up but cannot detect the water getting any hotter, causing it to shut down for safety.

Call an engineer soon

Book a Gas Safe engineer within 24 to 48 hours. Your boiler may be unsafe or could break down completely if left.

Technical description

The flow temperature sensor is not detecting a rise in temperature following a burner start

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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