thanks. Ive got another issue, different gen. MEP-806B I have it set at 230/400volt 50 hz. Its ran like this with no issues, under a load for months. Some soldiers hooked up a new water pump and wired the water pump wrong. Another soldier claims he found the switch inside the control panel set at 60 hz and switched it over to 50 hz. possibly while it was running…..the bottom line is the gen speed will no longer run at 50 hz or 1500 rpm…….now its running at 57.4, thats the slowest I can get it to go using the frequency adj momentary switch on the control panel…. Am I looking at buying a new I/O board for this or is it going to be some easy fix.?