How much does it cost to fix Potterton error code Neon 27?

Typical repair cost for the Potterton Neon 27 fault is £120-250 including labour.

Neon 27 High

Potterton Neon 27 Fault Code

Q: What does the Potterton Neon 27 fault code mean?

Your boiler is struggling to circulate water, either because there isn't enough water inside the system or the internal pump has stopped working.

Also written as NEON27 — same fault.

The Potterton Neon 27 fault code means: your boiler is struggling to circulate water, either because there isn't enough water inside the system or the internal pump has stopped working.. It appears on 1 Potterton model in our database.

Technical description: Fault on Pump or Low System Pressure

Typical repair cost £120-250 (including labour)

DIY fix possible

Check your pressure gauge; if it is below 1 bar, top up the system pressure using the filling loopTurn the boiler off at the isolation switch or mains for 30 seconds to reset the systemTurn the boiler back on and check if the error light clears

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Potterton models that show the Neon 27 fault code

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

Performa 24 Repair: £120-250

Source

Potterton Neon 27 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