Moeller M1-800-MOELLER Error GrF

Electronic overload relay · taken from the manufacturer’s manual, pages cited

Fault codeGrF

A ground fault current exceeding the programmed "GF" value has been detected, requiring manual reset and motor inspection. The manual's first action is: “A manual reset is required. Check the motor for insulation breakdown.”

Model
Moeller M1-800-MOELLER
Display shows
GrF
Type
Fault code
Source
Manual p. 9

What GrF means

A ground fault current greater than the programmed "GF" value has been detected. p. 9

Common causes

  • A ground fault current greater than the programmed "GF" value has been detected. p. 9

What to do

  1. A manual reset is required. Check the motor for insulation breakdown. p. 9

If GrF is still not resolved

The manual gives no further instruction for this code. Open the code table in the PDF or contact Moeller service.

Open the manual at page 9 All M1-800-MOELLER error codes Manual details & download

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