I have a wiring question. i have a generac 5522 generator. what signals the generator to start? is it n1 and n2 or is it 15b and 23? if it is 15b and 23 does wire 23 just come back to the gen with 12 volts? is the contact in the transfer switch no or nc. thanks

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This 2099 has disabled my Generac after being fine for 2 yrs???

When you get the under speed alarm is the generator under load? Try manually starting the generator with no load and let it run for a while, if no alarm, then put it under your home load and measure current draw (maybe have an electrician check it) if the amp draw and in rush caused by compressors, pumps motors etc are within the generator rating, check your fuel pressure, on average 8-11 WC Nat gas. Pressure may test well under no load but drop starving the engine of fuel unde rload. Underspeed is just that engine cannot make RPM/Frequency

google the make of generator and look up manuals.

You need to pull in two yellow wires called N1 N2 for sensing 220v. One red and one white called 23 and 194 those are your 12vdc transfer wires. And then last of all your 12vdc from battery charger. Hope this helps

Check the N1 N2 fuses in transfer switch one or both of them are probably blown. N1 N2 fuses have the yellow wires on them if they are blown the generator thinks there is no utility power and will start There needs to be 220 volt on them .

You need to contact TRACE about this endeavor. The inverter will have to work with the generator's control, likely in manual mode. An adapter may be needed for the inverter to allow it to create the signals that the generator expects.

Sounds like the electritian wired something wrong. Control wiring for that generator should be:
N1 and N2 = 240 vac utility input
Wire 0 = ground
Wire 194 (15B) = + battery
wire 23 = transfer signal

just 4. I install generac switches and generators