Low
d5 on Alpha Eco

Your boiler is simply displaying the current target temperature setting for your hot water, rather than indicating a fault.

Reviewed by the BoilerFaultCodes Editorial Team · Last reviewed

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.

What the manual says

Manufacturer manual

Domestic hot water set point temperature °C

From this model's manual
Verified against the Alpha Eco installation & service manual, page 23.
Plain-English guidance below. Severity, DIY steps, costs and parts are our interpretation to help you act, not text from the manual.

DIY fix possible

Check your boiler display manual to confirm this is a status code rather than an errorAdjust the domestic hot water dial on the front panel if you wish to change your water temperatureMonitor the screen to see if the display returns to the normal operating temperature once the tap is closed

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