No power and/or display

No power and/or display

Problem
No power and/or display

Possible Cause
Possible Solution
A circuit breaker at service panel is off or tripped.
Reset the circuit breaker. 
Incorrect wiring
Correct the wiring. 
Display board inter-connect cable is not plugged into the power supply board properly.
Plug in the display board cable. 
115/230 VAC switch in the wrong position
Switch off the power, set switch to the correct setting, and then switch on the power. 




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