Toshiba P07-01

Critical

SMMS / SMMS-e — Inverter heat sink overheat (poor IGBT cooling).

Toshiba P07-01: Inverter heat sink overheat (poor IGBT cooling). This fault typically halts operation and needs immediate attention.

Possible causes

Heat sink dusty / thermal paste / fan.

Check steps

Clean heat sink, check thermal paste.

Affected parts

Inverter-PCB

Safety note

High voltage! Let capacitors discharge.

Source: Toshiba resmi servis kılavuzu — Confirmed verbatim on PDF page 8: 'P07 Heat sink overheating error'. No -01 suffix documented (base code only).

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

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