U60 Low

Potterton U60 Fault Code

The Potterton U60 fault code means: your boiler is simply showing you the current hot water temperature setting so you can adjust it to your preference.. It appears on 1 Potterton model in our database.

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: DHW temperature selected (by knob). Adjust if required - 55°C recommended. Range: 65°C(winter) - 45°C(summer)

What causes the Potterton U60 fault?

This is not a mechanical failure but rather a status notification triggered when the user-adjustable hot water control knob is turned. It appears to confirm the specific target temperature you have set for your taps and showers, ensuring the boiler heat exchanger knows exactly how much to heat the water.

This code is often seen during the transition between seasons when homeowners adjust the dial higher for winter comfort or lower for energy saving in summer.

DIY fix possible

Locate the domestic hot water (DHW) control knob on the boiler panel.Turn the knob to your desired temperature, ideally around 55°C for standard use.Check that the display updates to your new selection and then returns to the normal operating screen.

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Potterton models that show the U60 fault code

Click a model for the full fault code list and model-specific repair notes.

Source

Potterton U60 fault code information on this page is sourced and cross-checked against the official Potterton service / installation manuals for each affected model.

Reviewed by the BoilerFaultCodes Editorial Team · Last reviewed 27 April 2026