On the LC Plus control box:
The amplifier status is read out on the badge in the front. Axis 1,2,3,4 have lights. If the light is lit, the amplifier is enabled.
If no lights are lit, the problem is likely the transformer. Find a qualified electrician with a multimeter and then Contact Support.
If some lights are lit and others are not, the problem is likely the amplifiers. The box will need servicing. Contact Support.