Low Information
t80 on Potterton Powermax HE

Your boiler is displaying a status message rather than a breakdown code, indicating it is checking water temperatures and simply requires a reset to return to the pressure display.

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.

Technical description

Indicative flow temperature to DHW. O.K. Scroll to pressure display "P". Press RESET button to scroll display

What causes this fault?

This message appears when the boiler's internal computer is displaying the current water temperature being sent to your taps rather than the system pressure. It is not actually a fault, but rather a specific monitoring mode that occurred because a button was likely pressed or the system is performing a routine check. You simply need to toggle the display settings to return the screen to its standard pressure reading.

DIY fix possible

Locate the RESET button on the control panel.Press the RESET button once to scroll through the menu letters.Stop when the display shows 'P' (for Pressure) to return to normal operation.

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