Mitsubishi Electric 2033 G Series Error UF404: Load abnormal

UPS · taken from the manufacturer’s manual, pages cited

Alarm codeUF404

Auto transfer of frequent occurrence based on overload causes a Load abnormal. The manual's first action is: “CHECK LOAD”

Model
Mitsubishi Electric 2033 G Series
Display shows
Load abnormal (UF404)
Type
Alarm code
Source
Manual p. 42

What UF404 means

Load abnormal p. 42

Common causes

  • Auto transfer of frequent occurrence based on overload p. 42

What to do

  1. CHECK LOAD p. 42

Before you service the product, read the safety instructions in the manual p. 7.

If UF404 is still not resolved

  • Obtain a qualified service for this equipment as per instructions. p. 7
    “Obtain a qualified service for this equipment as per instructions.”

This page summarises what the manufacturer’s manual says about UF404; 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 Mitsubishi Electric. Found a mistake? Report an error.