durell johnson
am getting 9.45 DC volts it's not getting the full 12dcv can to send the signal  to the transferswitch  can anyone tell me what's the cause
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78buckshot
durell, most of the techs on this site are old school, we need more info and much more clear verbiage when you post. As we try to help you we are envisioning the system but it is difficult for us without a model number, serial number, type of fuel, etc. Please think through your problem a little and give us as much info and history as you can. We're here to help and can lead you through all of it.
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Discover
With out more information what kind of wire is ran for control wires?? And distance??? Generally I would check you connection both at the generator and transfer switch.it could also be a voltage drop especially if they ran thermostats wire for control wire at a long distance 
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Dick from Canada
Don't know if you have solved your problem . Just a few ideas. As noted check at both ends of the wire and  make sure the connections are tight .I'm assuming you are taking your readings when the the coil or transfer motor is trying to engage . You should see 12 volts across the coil or motor not to the housing .  On my older model the transfer wiring is #14 stranded wire thus a very low voltage drop across the wire. As posted ,if the wire is small { no 18 or 20} the voltage drop could be a factor. Check the voltage at it's starting point . I should read 12vdc to the battery's  negative post. Make sure you are taking your reading on your input to your transfer device . See if you can find  a copy of the service manual . The 9.45 vdc may be correct from you controller and the transfer element may be faulty. Last but not least check your volt meter , you should see  about 14.5 volts across the battery posts. Hope this is some help.
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