Endress+Hauser FMI51, FMI52 Error W 1662: Temperature at electronic insert too high (max. temp. at sensor exceeded)

Capacitive level transmitter · taken from the manufacturer’s manual, pages cited

Fault codeW 1662

The electronic insert has reached a temperature higher than its maximum sensor limit. The manual's first action is: “Lower ambient temperature by suitable measures”

Model
Endress+Hauser FMI51, FMI52
Display shows
W 1662
Type
Fault code
Source
Manual p. 86

What W 1662 means

Temperature at electronic insert too high (max. temp. at sensor exceeded) p. 86

Common causes

  • Temperature at electronic insert too high (max. temp. at sensor exceeded) p. 86

What to do

  1. Lower ambient temperature by suitable measures p. 86

If W 1662 is still not resolved

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

This page summarises what the manufacturer’s manual says about W 1662; 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 Endress+Hauser. Found a mistake? Report an error.