Delta M70A_263 Error E02: Grid frequency low

Solar inverter · taken from the manufacturer’s manual, pages cited

Fault codeE02

Grid frequency is too low. The manual's first action is: “1. Check the utility frequency 2. Check Grid code & Grid setting”

Model
Delta M70A_263
Display shows
Grid frequency low (E02)
Type
Fault code
Source
Manual p. 73

What E02 means

Grid frequency low p. 73

What to do

  1. 1. Check the utility frequency 2. Check Grid code & Grid setting p. 73

Before you service the product, read the safety instructions in the manual p. 28.

If E02 is still not resolved

  • contact service / dealer p. 28
    “In order to ensure the normal long-term operation of the inverter, please follow the procedures in Section 5.1 to open and close the door.”
Open the manual at page 73 All M70A_263 error codes Manual details & download

This page summarises what the manufacturer’s manual says about E02; 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 Delta. Found a mistake? Report an error.