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No power to control box assembly

\015 Unit is plugged in, pushed the power on switch in control box assembly, no LED will light up, nor will unit start.\015

Answers :

DO you have a way to make sure the power is on at the plug?

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No power to control box assembly

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Hi, Wow, wish you were home!! If the CMC relay has the correct voltage to it, I am assuming 230 volt, 3 phase also, it may be your fault. If its energized on a call for cooling, and does nothing, I would say that this is your faulty componant. I don ... Air Conditioners

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Bought a new dometic a/c and it won't run. voltage is present in the control box until the upper unit is plugged in/connected, to the control box/thermostat. the voltage to the upper unit then disappears like it's shorted or grounded. prior to plugging in the upper or main unit there was 110v a/c present on the lo and hi fan terminals as well as the output to the female plug for the roof unit. when plugged in the 110v is no longer present on any terminal of the control box or thermostat. any ide

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Either a thermal switch is open or the pressure switch is closed at start up the system checks all of these before sending power to the T-Stat ... Air Conditioners

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