p[ xx Low

Remeha p[ xx Fault Code

Also written as PXX — same fault.

The Remeha p[ xx fault code means: your boiler is currently running a routine internal setup or air-clearing cycle and is operating normally.. It appears on 2 Remeha models 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: Venting cycle/Parameter version number (Not a fault)

Engineer required

This fault requires a Gas Safe registered engineer. Do not attempt gas-related repairs yourself.

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Remeha models that show the p[ xx fault code

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

Source

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

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