Mitsubishi Electric 2033 G Series Error UF451: 52S abnormal

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

Alarm codeUF451

52S not turned on, or turned on without any command when manual transfer causes a 52S abnormal. The manual's first action is: “CALL SERVICE ENGINEER”

Model
Mitsubishi Electric 2033 G Series
Display shows
52S abnormal (UF451)
Type
Alarm code
Source
Manual p. 42

What UF451 means

52S abnormal p. 42

Common causes

  • 52S not turned on, or turned on without any command when manual transfer p. 42

What to do

  1. CALL SERVICE ENGINEER p. 42

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

If UF451 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.”
Open the manual at page 42 All 2033 G Series error codes Manual details & download

This page summarises what the manufacturer’s manual says about UF451; 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.