Check that the circuit breaker is not tripped. If so, check that the freeze dryer is not damaged in any way and reset the circuit breaker. Check that the power cord is plugged in, and that the mechanical power switch on the back of the unit is set to ON. If the machine is receiving power, a LED will glow on the power PCB board. Remove the top panel to check whether this is on. If not, contact Customer Support.
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