Inon Z240 Assistance

One of my Z240's seem to be having a problem.

Despite whatever setting I use in Manual mode, from 2-11 the strobe has the same output of light.

Can anyone provide any insight? Have searched this forum with no solution.

Thanks,

Gary

There are two lockable push buttons on the strobe, one is your focus light and the other one it Advanced Circuit Cancel which needs to be pushed in and locked when in manual...