Surging The generator is less than a year old. The first time the power went out and it actually was needed, it came on and surged terribly. We shut it down and slept in the camper with a portable generator. The installer checked it out and suggested that the problem was caused by a regulator on the fuel line. The propane supplier even though skeptical replaced the regulators. It has only come on for a couple short periods since then and has worked fine and it works fine every Sunday when it comes on for its weekly test. Then last night during a storm the power went out and the generator came on and surged terribly. We shut everything off at breaker box to prevent damage to appliances and let generator run for several minutes and surging stopped. We put load back on and ran fine for about 5 minutes when power came back on. Today after storm started it up with no load and continues to surge at startup. Kohler has not been very helpful.

PLEASE CLARIFY. Is the engine surging or is the voltage surging PLEASE CLARIFY. Is the engine surging or is the voltage surging

You mention the lp gas supplier but you say it is fuel injected. Fuel injection is for gasoline engines. Is the engine speed surging or is the generator voltage surging? You mention the lp gas supplier but you say it is fuel injected. Fuel injection is for gasoline engines. Is the engine speed surging or is the generator voltage surging?

The engine is surging, thereby causing generator to surge in power It is like it is in big swing, rpms increasing and decreasing a lot. Lots of thumping in the high and low pressure regulators. It is LP, sorry for the confusion. The engine is surging, thereby causing generator to surge in power It is like it is in big swing, rpms increasing and decreasing a lot. Lots of thumping in the high and low pressure regulators. It is LP, sorry for the confusion.

A unit like this has an electronic governor to control engine speed. There is an electronic control box that controls the throttle valve, AKA the carburetor throttle plate. The controller controls the actuator to operate the throttle. The controller must get a signal to know how fast the engine is running. This signal can come from a number of places. The most likely is a magnetic pickup mounted on the housing between the engine and generator. It counts the teeth on the starter ring gear on the flywheel. Find this magnetic pickup and make sure it is connected properly to the controller. There is usually plug and it may have come loose.Carefully follow the wires to the controller to make sure everything is well. If the controller is getting it's signal, it may be a bad controller or a controller out of adjustment. There is an adjustment labeled "stability" . Turning one way will make it worse and the other will make your problem go away. Turn it only enough to give speed stability and no more..The governor is actually two governors in one. The first is to keep the engine at 1800 rpm for 60 cy current. The other is an overspeed governor to keep the engine or generator from coming apart from overspeed. A unit like this has an electronic governor to control engine speed. There is an electronic control box that controls the throttle valve, AKA the carburetor throttle plate. The controller controls the actuator to operate the throttle. The controller must get a signal to know how fast the engine is running. This signal can come from a number of places. The most likely is a magnetic pickup mounted on the housing between the engine and generator. It counts the teeth on the starter ring gear on the flywheel. Find this magnetic pickup and make sure it is connected properly to the controller. There is usually plug and it may have come loose.Carefully follow the wires to the controller to make sure everything is well. If the controller is getting it's signal, it may be a bad controller or a controller out of adjustment. There is an adjustment labeled "stability" . Turning one way will make it worse and the other will make your problem go away. Turn it only enough to give speed stability and no more..The governor is actually two governors in one. The first is to keep the engine at 1800 rpm for 60 cy current. The other is an overspeed governor to keep the engine or generator from coming apart from overspeed.

I suppose we are in over our heads with this one...everything is computerized and out of our confidence level. We have the gas company coming back out Friday to replace regulators again. Then we will be at the mercy of the installer to figure out why this keeps happening. Very disheartening since it was so expensive and was to provide a sense of security but we now keep it off because we are afraid it will come on while we are away and damage everything. I suppose we are in over our heads with this one...everything is computerized and out of our confidence level. We have the gas company coming back out Friday to replace regulators again. Then we will be at the mercy of the installer to figure out why this keeps happening. Very disheartening since it was so expensive and was to provide a sense of security but we now keep it off because we are afraid it will come on while we are away and damage everything.