Low
10 on Potterton Performa System HE

Your boiler is simply indicating that it has successfully completed its startup process and is currently powered on.

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

Power On

From this model's manual
Verified against the Potterton/Potterton Potterton Performa System He Boiler Error Codes installation & service manual, page 7.
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

No action is required as this is a normal status indicatorMonitor the display to ensure it remains stableEnsure your thermostat or timer is set to call for heat if required

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Related fault codes

E01View →E02View →

All 24 fault codes on the Performa System HE

Seeing a different code? Every code this model can display, in one place.

11122021232425Flashing Mains ON lightMAINS LED FLASHINGMAINS LED OFFneon flashingneon flashing (Section B)neon flashing (Section C)neon flashing (Section E)neon flashing (Section H & K)neon flashing (Section I)neon flashing (Section J)neon flashing (Section M)neon illuminatedneons flashing (Section D)Overheat Stat neons flashingPressure of 3 or greaterReset neon does not extinguish

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