Stiebel Eltron 10003

Critical

WPL / WPMsystem — Minimum low-pressure monitor tripped.

Stiebel Eltron 10003: Minimum low-pressure monitor tripped. This fault typically halts operation and needs immediate attention.

Possible causes

Refrigerant escaped / EXV not opening.
Fan not running.

Check steps

Leak test & check charge.
Check EXV & fan.

Affected parts

Kältemittel
Expansionsventil

Safety note

Follow F-Gas.

Source: Stiebel Eltron resmi servis kılavuzu — PDF p.2 (line 13-19): '10003 Wärmepumpe Der Wächter für minimalen Niederdruck hat ausgelöst. Möglicher Eintritt von Kältemittel in den Heizkreis...' Exact match.

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