![](https://s3.amazonaws.com/cdn.freshdesk.com/data/helpdesk/attachments/production/2043021886344/original/I79iVAS06OP9hj3jJyx7gmkXdQntnH4Bzw.png?1557769220)
GREEN - flashes every time a pulse is sent to the coils
RED – brief flash at the end of each mode, but if RED flashes many times or stays ON, that means device fault. Try this: make sure coils are plugged in correctly and fully, test coils with hexagonal tester, turn power OFF and allow to cool.YELLOW – flashes only during REST periods (available in selected protocols). No pulses are sent to the coils when flashing.