Danfoss 100 FLOW Error ID 603: System Fault

Danfoss 100 FLOW · taken from the manufacturer’s manual, pages cited

Fault codeID 603

System Fault occurs due to defective component, operation malfunction, or low auxiliary power voltage in the power unit. The manual's first action is: “Reset the fault and restart the drive.”

Model
Danfoss 100 FLOW
Display shows
System Fault (ID 603)
Type
Fault code
Source
Manual p. 295

What ID 603 means

System Fault p. 295

Common causes

  • Defective component. p. 295
  • Operation malfunction. p. 295
  • The voltage of auxiliary power in the power unit is too low. p. 295

What to do

  1. Reset the fault and restart the drive. p. 295
  2. Download the latest software from the Danfoss Drives website. Update the drive with it. p. 295
  3. If the fault occurs again, ask for instructions from your nearest distributor. p. 295

If ID 603 is still not resolved

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

Open the manual at page 295 All 100 FLOW error codes Manual details & download

This page summarises what the manufacturer’s manual says about ID 603; 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 Danfoss. Found a mistake? Report an error.