Mitsubishi Electric 2033 G Series Error UF171: DC voltage abnormal

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

Error codeUF171

DC voltage abnormal when DC overvoltage or reversal voltage is detected. The manual's first action is: “CALL SERVICE ENGINEER”

Model
Mitsubishi Electric 2033 G Series
Display shows
DC voltage abnormal (UF171)
Type
Error code
Source
Manual p. 41

What UF171 means

DC voltage abnormal p. 41

Common causes

  • DC over voltage or DC reversal voltage detected p. 41

Safety warnings — read before you start

  • DANGERWARNING 1. Lethal voltages exist within the equipment during operation. Observe all warning and cautions in this manual. Failure to comply may result in serious injury or death. p. 7

What to do

  1. CALL SERVICE ENGINEER p. 41

If UF171 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 UF171; 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.