I have a new 3600w auto switching isolation transformer that I just installed but it is not working. I have to connected to 230v (single-phase) / 16a shore power and have verified that it is getting 226vac on the input side. I have the output jumpers set for 115 volts output and the neutral to ground jumper installed. There is no input jumper as this auto-senses input voltage. The green power LED is lit but neither the 230v or 115v yellow LED is lit. It appears that the unit is defective as it is not sensing or accepting the voltage as good despite my verification that it is good. I have also verified that the polarity is correct. Any suggestions before I return it? I have contacted the dealer but still waiting for a response. Thanks, Chris