Low
U60 on Potterton Promax 15 & 24

Your boiler is simply indicating that the dial used to set your hot water temperature is currently being adjusted.

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

DHW temperature selected (by knob)

From this model's manual
Verified against the Potterton Promax 15 24 installation & service manual, page 39.
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

Wait a few seconds for the boiler display to return to normal after adjusting the dialEnsure the hot water temperature control knob is not stuck in a mid-positionRotate the dial fully to the desired temperature setting

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