Example reference: Support on RC-5B plus (https://newlifescientific.freshdesk.com/a/tickets/16317)

Specializing technician: Bart 


The common questions to ask


-Have you verified that you have the correct voltage at the outlet?
-Are any breakers at the back of the unit popped and need pushed back in?
-To verify, have you also made sure to flip the power switch on the front of the unit?
-Are there any signs of life when plugged in and power switch on? Noises or display?