Fault Codes / Bitzer / 7401

ECOLINE — Sensor Fault: Suction Pressure Sensor

Possible causes

• Sensor cable broken or connector loose
• Pressure sensor defective (no signal or invalid signal)

Check steps

• Check cable and connector of the suction pressure sensor
• Measure sensor signal with a multimeter against reference value, replace sensor if needed

Affected parts

• Sauggasdrucksensor/Suction pressure sensor
• Sensorkabel/Sensor cable

Safety note

Source: Bitzer resmi servis kilavuzu (bagimsiz cift-dogrulandi) — BITZER CM-RC-01 Reference Manual (ManualsLib rendering, p.27), Alarm List section "74-* Sensor - Pressure": code 7401 "Sensor: Suction Pressure", Fault=Yes, Reset type=Timed. Independently re-fetched directly from https://www.manualslib.com/manual/2504095/Bitzer-Cm-Rc-01.html?page=27 (separate fetch from researcher…

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

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