Danfoss 100 FLOW Error 71: Stator Winding: Current Warning S1

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

Fault code71

Stator Winding: Current Warning S1 occurs when current unbalance exceeds detection limits, indicating early motor fault requiring stator winding check. The manual's first action is: “Check motor stator windings.”

Model
Danfoss 100 FLOW
Display shows
Stator Winding: Current Warning S1 (71)
Type
Fault code
Source
Manual p. 313

What 71 means

Stator Winding: Current Warning S1 p. 313

Common causes

  • Current unbalance has exceeded the detection high limit. Early fault detected in motor. p. 313
  • Current unbalance has exceeded the detection high limit. Severe fault can soon occur in the motor. p. 313
  • Current unbalance has exceeded the detection high limit. Severe fault is detected in motor. p. 313
  • Vibration has exceeded the detection high limit. Early fault detected in motor. p. 313
  • Vibration has exceeded the detection high limit. Severe fault can occur soon in the motor. p. 313
  • Vibration has exceeded the detection high limit. Severe fault detected in motor. p. 313
  • Load outside of the window limits. Early fault detected in motor. p. 313
  • Load outside of the window limits. Severe fault can occur soon in the motor. p. 313
  • Load outside of the window limits. Severe fault is detected in motor. p. 313

What to do

  1. Check motor stator windings. p. 313
  2. Check root cause for increased vibration. p. 313
  3. Check root cause for excessive overload or underload. p. 313

If 71 is still not resolved

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

This page summarises what the manufacturer’s manual says about 71; 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.