Bitzer 7404

Medium

ECOLINE — Sensor: Suction Pressure Signal High

Bitzer 7404: Sensor: Suction Pressure Signal High This fault usually isn't an immediate stop, but should be checked soon.

Possible causes

Signal above measuring range or sensor defective
Wiring fault (signal line shorted to supply voltage)

Check steps

Check wiring for short circuit to supply voltage
Replace sensor if signal remains out of range

Affected parts

Sauggasdrucksensor/Suction pressure sensor

Safety note

De-energize before servicing.

Source: Bitzer resmi servis kilavuzu (bagimsiz cift-dogrulandi) — BITZER CM-RC-01 Reference Manual (ManualsLib, mirror: cis.bitzer.ru/files/File/IQ-Products/CM-RC-01.pdf), Alarm List p.28: code 7404 "Sensor: Suction Pressure Signal High" — Warning=No, Critical=No, Fault=Yes, Reset Type=Timed.

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

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