Thanks for solving this so quickly for me, I just had the transformers facing the wrong way.
Here is the screenshot of the setup. The EU readings are from the wire in between the MFE and transformer.
This is just an example of the setup, I have tried various end-machines, such as batboxes and other machines, just to play with the variables.
EDIT: I apologize for the bad quality of the image
Yes, the transformer is facing the right way, and I have no redstone currant applied to either the MFE or transformer. I have an EU reader which registers no power at all coming out of the system.
I'm late game on an SMP server, and I'm having a huge problem with my MFE. I'm moving house, and I recently arrived at my new base, and have set up the EXACT same pattern of batboxes, solar panels, and one MFE, but now my MFE won't give off power. I know it is charging, and everything is working fine, except for the fact that the MFE isn't sending any EU down the glass fiber cable I have hooked up to an LV-transformer, which is in turn hooked up to machines. The machines aren't charging, which is a big problem for me, being late-game and without any machines.
I haven't tested this with my batbox yet, I will do this soon.
Notes: I know the output face is connected with the cable. Also, the redstone button in the top-right of the MFE UI is set to 'nothing'.
Any help would be appreciated.