PANASONICA

Panasonic Aquarea F22

Critical

WH-Serie — IPM (power transistor) overheating protection.

Panasonic Aquarea F22: IPM (power transistor) overheating protection. This fault typically halts operation and needs immediate attention.

Possible causes

Improper heat exchange / heat sink.
Inverter PCB / fan faulty.

Check steps

Clean/check heat sink & ventilation.
Check IPM mounting & inverter PCB.

Affected parts

Inverter-PCB
Kühlkörper

Safety note

High voltage! Let capacitors discharge.

Source: Panasonic Aquarea resmi servis kılavuzu — Same source: 'F22 IPM (power transistor) overheating protection — 3 times occurrence within 30 minutes — Improper heat exchange / IPM (Power transistor).' (ProClub NL: IPM sensor detects temp >95°C.)

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

Look up in Enthalio →

Related fault codes

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