Panasonic Aquarea F46

High

WH-Serie — Outdoor current transformer open circuit.

Panasonic Aquarea F46: Outdoor current transformer open circuit. This fault noticeably affects operation.

Possible causes

Low refrigerant / CT wiring.
Outdoor PCB faulty.

Check steps

Check CT wiring & outdoor PCB.
Check charge.

Affected parts

Außen-PCB

Safety note

High voltage! Let capacitors discharge.

Source: Panasonic Aquarea resmi servis kılavuzu — Same source: 'F46 Outdoor Current Transformer open circuit — Insufficient refrigerant / Outdoor PCB / Compressor low.' Dutch ProClub doc: CT detects open circuit via compressor frequency and CT input current <0.65A for 20 sec.

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

Look up in Enthalio →

Related fault codes

Water flow switch abnormality.H62 High pressure sensor abnormality.H64 Back-up heater OLP abnormality.H70 Indoor/outdoor communication abnormality.H90 Pressure switch activated.F12 Cooling high pressure overload protection.F95