Stiebel Eltron 10023

Critical

WPL / WPMsystem — HP sensor exceeded the limit.

Stiebel Eltron 10023: HP sensor exceeded the limit. This fault typically halts operation and needs immediate attention.

Possible causes

Heating flow rate too low.
Room temp / heat curve set too high.

Check steps

Check flow rate & heat curve.
Measure high pressure.

Affected parts

Hochdrucksensor
Umwälzpumpe

Safety note

High-pressure side & follow F-Gas.

Source: Stiebel Eltron resmi servis kılavuzu — PDF p.2 (line 37-38): '10023 Wärmepumpe HD-Sensor hat den Grenzwert überschritten. Volumenstrom der Heizung zu klein, eingestellte Raumtemperatur/Heizkurve zu hoch.' Confirmed present (not independent

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

Look up in Enthalio →

Related fault codes

High pressure limiter responded.10004 Low pressure switch triggered.10005 Compressor or starting contactor stuck.10002 Hot gas temperature exceeded the limit.10024 Frost protection monitor triggered in defrost 10015 HP does not rise above LP after compressor sta10027