Kohler 30RES Generator LOC code coolants ok

Make sure u remove the fill plug and not the drain! In any case it seems like u may have overfilled it. Make sure you read the instruction in proper oil level.

http://www.kohlerpower.com/onlinecatalog/pdf/g2058.pdf
Safety shutdowns:

1. Loss of coolant
2. High water temperature
3. Low oil pressure

Likely one of these. If no indicators at a panel check at the connector.

Make sure all the drains are closed, start filling the rad and allow the coolant time to drain down, then fill again. Keep filling the rad unit it no longer drains down, just make sure to stop filling it when the level in the rad is just barely visible when looking down inside it. Now fill the overflow bottle to the lowest level mark. Start the car and turn you heater on to full heat. Let it warm up to proper temp, may/may not need to put more in rad. Keep an eye on the level in the rad it will expand and may overflow, if it looks like it will overflow use yout tester to remove some fluid. Once you see the coolant flowing throug the rad wait a few minutes, then put the rad cap on. Let it run a few more minutes to get the rest of the air out, then drive like normal. Check the fluid level in the overflow bottle (engine cold) over the next few days fill to proper level as needed.

Check coolant levels to ensure they are full. Check for coolant leaks.

What you describe could be considered normal if you are driving in hot ambient temperatures with full coolants levels. Ensure you are using coolant liquid not water.

If fluid levels are full (rad and overflow bottle) and there are no leaks and the temperature gauge is not show engine it running hot; then the sensor that controls the fan(s) should be replaced.

Sorry I meant low coolant sensor, not low oil

Hi jgikirstein..
You need to reset your water level inside of the tank, lower the ball float and that should stop your overflow problem.
If it continues to leak then you must replace your "ballcock assembly"...if it is defective it will also cause your tank to overflow...
Free Answer...Please rate me

Check coolant level in the rad fluid overflow bottle.
If level is ok, check if the rad fan is working.
Also check if you are getting heat inside the car if you put it on hot with the fan on full. If there is no heat, it is probably the water pump that circulates the coolant

when i had the problem it was my themostat. easy fix, may also be your radiator cap needs to be replaced.

Generaly 2 possabilities, low coolant level or cloged heater core/hoses. Check low coolant first as this is thew easiest and usually the simplest solution. With the engine cold, remove the rad cap and overflow cap. Fill the rad full and the overflow to the cold level and replace the rad cap and overflow cap. Start and warm up the engine. If you still do not have any heat, then let the engine cool and drain the rad. Remove the heater lines and try to bolw air through them (if cloged, then replace them). If the heater lines are clear, then blow air through the heater core intake and see if you get a good flow out from the heater core, if no, replace heater core.