Nicu patient was on the jet ventilator when the ventilator displayed ventilator fault and shut down.The ventilator was turned off and then back on with nothing working still.Patient was manually ventilated while a new vent was brought over.It was a lengthy process, so the patient was manually ventilated for about 20 minutes.The patient was placed on the new jet ventilator and was stable.Bunnell was contacted and we are troubleshooting the problem with the ventilator.