Stiebel Eltron 30054

Medium

WPL / WPMsystem — Compressor thermistor protection relay triggered.

Stiebel Eltron 30054: Compressor thermistor protection relay triggered. This fault usually isn't an immediate stop, but should be checked soon.

Possible causes

Thermistor chain interrupted / compressor overheated.
Compressor defective or winding fault.

Check steps

Check thermistor chain & overload relay.
Remove cause, reset via WPM.

Affected parts

Verdichter
Motorschutzrelais

Safety note

Mains at compressor – isolate unit.

Source: Stiebel Eltron resmi servis kılavuzu — PDF page index 8 (later section): '30054 Wärmepumpe Das Thermistorschutzrelais für den Verdichter hat ausgelöst. Die Zwischeneinspritzung ist defekt. Die Thermistorkette ist unterbrochen. Der Verdicht

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