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
- 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.
