UT theoretical chemistry code forum

Basic question, if I turn on LCLIMB on an already converged NEB calculation, it will finish after a single iteration because the forces are converged. Is there a way to force the climbing mode? Should I just lower the convergence criteria? Thanks.

No, it shouldn't, since the force on the climbing image will be different (and non-zero) when you turn on LCLIMB. Just turn on LCLIMB and let it reconverge.