ABB ACH550 Error 4004: AUTO TRANSFER

AC drive · taken from the manufacturer’s manual, pages cited

Alarm code4004

AUTO TRANSFER indicates the drive has faulted and switched to bypass mode as configured. The manual's first action is: “Check drive”

Model
ABB ACH550
Display shows
AUTO TRANSFER (4004)
Type
Alarm code
Source
Manual p. 72

What 4004 means

AUTO TRANSFER p. 72

Common causes

  • Message is displayed when the drive faults and the bypass switches to bypass mode as configured in Parameter 1608 p. 72

What to do

  1. Check drive p. 72

Before you service the product, read the safety instructions in the manual p. 2.

If 4004 is still not resolved

  • contact the factory or your local Authorized Service Center for repair or replacement. p. 2
    “Never attempt to repair a malfunctioning ACH550; contact the factory or your local Authorized Service Center for repair or replacement.”
Open the manual at page 72 All ACH550 error codes Manual details & download

This page summarises what the manufacturer’s manual says about 4004; each statement links to the page it comes from, and quoted lines are copied word for word. It is not a substitute for the manual or for a qualified installer. ManualLib is not affiliated with ABB. Found a mistake? Report an error.