Low
c80 °C on Potterton Powermax HE

Your boiler is simply showing you the current temperature of the water being sent to your radiators, and you can press the reset button to see your system's water pressure instead.

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 CH. O.K. Scroll to pressure display "P". Press RESET button to scroll display

DIY fix possible

Locate the RESET button on the boiler control panelPress the button once to toggle the display away from the temperature readingMonitor the 'P' display to ensure your system pressure is within the recommended range

Find a Gas Safe engineer
Search the official register →

Related guides you might find useful

Boiler keeps losing pressure

Six most common causes of dropping pressure.

Read →

Boiler keeps cutting out

Lockout fault with a reset-needed pattern.

Read →

Radiators cold at the bottom

Sludge build-up — needs flushing, not bleeding.

Read →