NIBE 45

Critical

F-Serie — Phase fault — motor protection on single phase (Norway) has probably been triggered.

NIBE 45: Phase fault — motor protection on single phase (Norway) has probably been triggered. This fault typically halts operation and needs immediate attention.

Possible causes

Motor protection breaker triggered.

Check steps

Check motor protection breaker and compressor current.

Affected parts

Motorschutzschalter

Safety note

Isolate power before testing.

Source: NIBE Energy Systems official Alarm List (Version 1747-1, Updated 2017-11-23), "NIBE products with Emmy display" table, installer.nibe.eu

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

Look up in Enthalio →

Related fault codes

High pressure alarm – HP switch tripped repeat50 Compressor phase 1 missing or below 160V.40 Faulty phase sequence.43 Hot gas alarm – discharge temp over limit.55 High pressure alarm from outdoor unit.220 Short compressor runs – stopped 3× shortly aft229