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From what I could see that control box was designed to upgrade a 804B to be part of a "Micro Grid". Basically a bunch of generators that can load share and are automatically started and stopped based on load demand on the Micro Grid. Here is an example using AAMPS gensets

I'm not familiar with the 007 or that box. Not sure I can be of assistance with checking the OPs proposed design.

The MEP-803A can be set to output one of three different Phase/Voltage settings. 1) 120 volt 2) 120/240 volt Single Phase 3) 120/208 3 Phase The output specs for the MEP-803A. The first voltage is the phase to neutral voltage. The second voltage, if listed, is the phase to phase voltage(s)...

Or clamp them onto the insulated posts on the wall next to the battery tray.

The spec sheet for it says 50-60 Hz input.

It could be one of the resistors has failed open. I'd suggest disconnecting the two wires to CT3 and then measure the resistance between the two removed wires. It ought to be 3.75 ohms. The resistance of R12 & R13 7.5ohm resistors in parallel. If you get about 7.5 ohms then I'd suspect one...

Sending a PM

Yes, I still make and sell the conversion kits. Just shipped 18 kits earlier this week. I can source the gen head if desired and have it drop shipped.

Wow!

At 100% both R12 and R13 should have the same voltage of about 5 volts like the other resistors.

You indicated you had 9.5 v across R12. What's the voltage across R13? When set to 120/240 the switch connects R12 and R13 in parallel. My hunch is they are not getting connected in parallel resulting in about 2x the voltage.

The only relay in the row that has anything to dowith the contactor operation is K20 the rightmost one. It provides 24 volts for the contactor control circuit.

Yes, you can jump it using the slave port. Of course you can pull start it too. It will run without any batteries.

I'm on travel until next week so I can't be of much help. I haven't messed with it for a few months.

I don't have any available. I did repair a bad one for an SS member. There was a fried output transistor.

Both S6 and S8 are involved with the Overload detection circuit. Here is a simplified circuit diagram when running 120/240 and the AM/VM in the 3 o'clock position. The CT's output a current proportional to the load on each leg ranging from 0 at no load to 1 amp AC at 133% load. That current is...

It could also be a problem with the A9 Float Switch module or even the Fault Monitor itself. The no fuel fault comes in on pin 2 into the Fault Monitor. If you have the fault displayed check pin 2 of the Fault Monitor connector for 24 volts DC. If 24 volts is there then its a float switch or...

Deoxit is the spray to use

I have them listed in the Classifieds ---> S14

It's possible. S14 is used for disabling the starter and flashing of the gen head. Best to refer to the -24 TM and use the troubleshooting steps for engine not cranking. Could be a few culprits in the circuit causing a no crank situation.