I sometimes see the compliance warning light come on during stimulation and I don’t see any muscle twitches, what is wrong?

The amber out of compliance warning LED typically only illuminates when the impedance between the stimulation probe tips is excessive and is preventing the dialled current from being delivered. Impedance issues are usually resolved by swabbing with saline immediately prior to stimulation, as this makes the skin more conductive and allows the stimulator to work more effectively.