MarkVie is switched off core by core for Gas turbine maintenance. When we switch on power after the maintenance, always one or two core doesn't boot. It flashes 7 times indicating ROM failure. We had to remove the flash card and reflash it. Most times it works. Sometimes even after flashing, controller doesn't respond. We had to change the controller. This has been happening for sometime. We tried different methods of switching off and On, but the result is same.
Anybody is facing same trouble and any valuable suggestion please.
Anybody is facing same trouble and any valuable suggestion please.