Grundfos CUE Error 40: Undervoltage

Model

Grundfos CUE

Display shows

Undervoltage (40)

Type

Alarm code

Source

Manual p. 38

• Meaning
• What to do
• Still not solved
• Source

What 40 means

Undervoltage p. 38

What to do

1. Stop p. 38

If 40 is still not resolved

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

This page summarises what the manufacturer’s manual says about 40; 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 Grundfos. Found a mistake? Report an error.