30kw liquid cooled gen not cranking

[AC\DC]

First gen install.
The 7.5 amp fuse is blown. I found this out when wondering why it would not crank over.
The instructions say hock + up first to avoid sparks for explosion”
I did and when I hocked negative up I got a spark. I figured it was just the control board drawing power.
Would that sudden draw blow the fuse?? I only had factory fuse so trying another one tomorrow.

I think the fuse is keeping me from cranking gen. As soon as I hit manual it resets the control board back into wizard startup mode

Brand new gen

 

[LarryFine]

Check both ends of each of the control wires for proper termination.

Also make sure all of the control wires in the ATS are on their terminals.

 

[AC\DC]

I double check.
Only thing that got me was on board it has “0/ground dc” in transfer switch. Manual says hock neutral for battery charger on neutral in ATS .does not say hock to “0/ground dc”
Charger is 120 volt so that makes sense, but there was no small termination port on the lugs.I got it on neutral. It was pouring down rain and I am heading back tomorrow with 20 fuses lol.

If I plug fuse in and it blows I know I have a problem I would think gen would pop up with a system warning

 

[jim dungar]

I once had a car that required the battery to be connected to positive first in order for the computer/electronics to power up correctly.

 

[AC\DC]

I see one issue that may fix it. I’ll find out tomorrow. I’lol post when I get back

 

[letgomywago]

What brand? Generac? Or kholer?

 

[AC\DC]

Generac

 

[letgomywago]

Generac

Sorry I just don't have nice things to say about them heard to many stories. All I ever installed was kholer or regular interlocks and inlets. The only generac product I've messed with was their load shed module which is actually nice to work with.

 

[hillbilly1]

Don’t know about the fuse without looking at the diagram, but at one time, Generac required you to call them for a code to enter for the first start on their commercial generators. They wanted that so they could start the bad warranty period. It would not start without that code.

 

[RCC1]

All batteries connect the positive first, then the ground second. If you do it the other way around. and accidentally touch wrench between positive and the frame ground you get sparks. By connecting the positive first there is no possibility too short to ground with wrench.

 

[AC\DC]

Don’t know about the fuse without looking at the diagram, but at one time, Generac required you to call them for a code to enter for the first start on their commercial generators. They wanted that so they could start the bad warranty period. It would not start without that code.

Ya I had to get code before even attempting start up

 

[Seven-Delta-FortyOne]

The 6 control wires land on the terminal blocks on both ends.

Wire 0 is 12V-, and goes to the terminal block, not the neutral bar.

 

[AC\DC]

ya after looking again seems n1 in Tran goes to nuetral in Tran. And 0wire goes to ground in Tran back to 0 on terminal.heading there in hour

 

[Seven-Delta-FortyOne]

 

[AC\DC]

Still does not explain why fuse was blown.
Board must be resetting since it’s not getting dc power to terminal strip

 

[hillbilly1]

If I remember correctly, N1 and N2 are hots on Generac. It’s the utility voltage sense wires for the generator.

 

[AC\DC]

Fuse still blowing with ats clipped remove from board so no connection to ats.

It blew before I had wires hocked up from ats so it’s an enternal fault from gen somewrre

 

[LarryFine]

These control wires don't appear to be in the right terminals:

 

[AC\DC]

What ones. The white on this block goes to neutral not 0/-dc

The white in transfer goes to ground I sealed and did not pull new one yet. I’ll keep looking

 

[Seven-Delta-FortyOne]

That terminal block is completely messed up.

Wire 23 does not go to neutral either. It goes from the terminal block on the ATS to the terminal block on the generator.