Alison Perkins

I have an Inon Z240 strobe that has worked flawlessly since 2008... until recently. I shoot with the strobe in Manual mode, and I noticed it was doing a very weak fire.

I took some test shots at home. The strobe does not seem to be working properly in Auto, M and Full modes. It does a very weak fire. Moving the output controller knob made absolutely no difference to the light output.

The strobe does seem to be firing correctly in STTL and STTL Low modes. Moving the output controller knob does adjust the light output when fired.

Does anyone have any ideas what could be going on, or encountered anything like this before? There is no sign of water ingress into the unit.

Many thanks!