Essence
Ansys Employee

Please note that, just by having low scaled residuals does not mean the solution is converged. You should also try the net mass flow rate and energy balance (if needed). Additionally, observe the residuals for the flow properties (eg: pressure) if they have converged or not. You might need to set the residuals for the flow properties manually. 

Your solution might get converged even if the residuals are 1e-3. But, the mentioned conditions for the convergence needs to be checked.