Change Solution Method
If a model does not converge, try changing the solution method in the Solution Method panel. You also might consider changing the number of pipe segments or the Segment Length for the Length March Increment.
Related Topics
Transfer Results to Initial Guesses
Poor Compressor/Fan Curve Fits
Troubleshooting Resistance Curves
Use the Output Window Sort Feature
Lower the Flow Rate Relaxation
Make Initial Flow Rate Guesses for Pipes
Break a Large Model Into Submodels
Try a Different Fluid, Equation of State or Accuracy Option
Using Lumped Adiabatic as a Starting Point