Polar Bear Plunger;37757 wrote:
One of my customers has a QT10068GNAC. It's fairly new and Operates on Natural gas.
We are having some over crank conditions because the incoming gas exceeds 18"" WC sometimes.
We have replaced regulators and this is driving me crazy.
Does Generac make gas solenoids that are designed for higher gas pressures in the incoming gas supply line? The present solenoids will not open above 18" W.C. If so is it a kit and can you get me everything necessary to make the change for slightly higher gas pressure.
There isn't a kit available for this. The problem that you're facing is that the regulators in these units do not regulate down the pressure that comes into the unit really. It's more to meter the fuel based on vacuum pressure pulled by the engine. The higher fuel pressure will cause issues with the unit, even if you could get the solenoids to open. The easiest way to fix this would be to install a step down regulator for the generator to drop the pressure to the required amount that's spec'd in the owner's manual.