PANASONICA

Panasonic Aquarea F12

Critical

WH-Serie — Pressure switch activated.

Panasonic Aquarea F12: Pressure switch activated. This fault typically halts operation and needs immediate attention.

Possible causes

Excessive pressure (flow/soiling).
Pressure switch faulty.

Check steps

Check water flow & heat exchanger.
Check pressure switch.

Affected parts

Druckschalter

Safety note

Refrigerant under pressure – qualified only.

Source: Panasonic Aquarea resmi servis kılavuzu — Panasonic Aquarea Service Manual Error Codes Table (ManualsLib, WH-MDF06E3E5/WH-SDC series): 'Pressure switch activate/triggered' (triggers after repeated occurrences, e.g. 4x/20min) — matches app's 'Druckschalter ausgelöst'.

Reviewed by Anıl Güzeldemir — in the refrigeration machine room since 2006, developer of Enthalio.

Look up in Enthalio →

Related fault codes

Water flow switch abnormality.H62 High pressure sensor abnormality.H64 Back-up heater OLP abnormality.H70 Indoor/outdoor communication abnormality.H90 Cooling high pressure overload protection.F95 Control panel–indoor communication abnormalityH76