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I have a kholer 6.5 ESZ marine generator that I replaced the boards in but it still won't run. What is wrong?

I have replaced the fuses as well as the control board and the other board because they seemed that they were bad.

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I'm not familiar with these but has it got a low oil cutout? I've been fooled before with a Honda generator a guy couldn't keep going and all it wanted was a tea cup of engine oil.

Posted on Dec 05, 2014

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Hi. I have a generator. Kholer. Once i load the voltage. Its shuting downg the it showing over voltage.


what you haven't mentioned is the capacity of the genset
( 500 kva , 1000 kva etc ) and the loads that you are applying ( fridge , tools lights stoves , etc) comment on this for a better answer

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Generator starts but won't keep running


what are the fault indicators showing, over voltage, frequency wrong charging fault ?

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I have a Bosch SHU9955US/14 (Integra) dishwasher. There is currently a 0 with and asterisk showing on the display and the unit will not run.


see this causes and fix it. God bless you
Thermal Fuse If the dishwasher won't start the thermal fuse might have blown. The thermal fuse helps to prevent damage to the dishwasher by turning off power so that it doesn't overheat. Once blown, the thermal fuse will have to be replaced for the dishwasher to work.

Door Switch The door switch, or switches, are sometimes called interlock switches. The door switch prevents the dishwasher from running while the door is open. If the dishwasher won't start, the switch or switches might be defective. To access the door switches, remove the control panel or inside door panel - depending on the model. They can be tested for continuity.

Main Control Board The main control board provides power to nearly every component of the dishwasher. If the dishwasher won't start the main control board might be defective. YOU should first check for more common parts. Many times control boards are replaced unnecessarily because the problem was not diagnosed properly.

Touchpad and Control Panel If the touchpad is defective, the control board might not get the signal for the selections made. If the dishwasher won't start and the display doesn't seem to change properly when the buttons are pressed, the touchpad might need to be replaced. On some models the touchpad and control panel are sold together and will need to be replaced at the same time.

Touchpad If the touchpad is defective, the control board might not get the signal for the selections made. If the dishwasher won't start and the display doesn't seem to change properly when the buttons are pressed, the touchpad might need to be replaced.

Timer The timer allows power to flow to the proper parts at the proper times. If the dishwasher won't start, the timer might be defective. Keep in mind that timers are often misdiagnosed as the cause of a problem. Check other components first before replacing the timer.



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Sep 29, 2012 | Bosch Dishwashers

1 Answer

Kohler marine generator troubleshooting


I have a kohler marine generator that shuts down when it reaches operating temp of 200/210 degrees. It runs for about 5 minutes. Already replaced impella and have sea water pumping through, coolant level is good. Any suggestions? Thanks

May 02, 2012 | Electrical Supplies

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I have a Heart Interface Freedom 20 inverter in a 95 American Dream, the inverter part number is 81-0209-12. It was subjected to a voltage surge by a runaway generator that lasted about 30 seconds. The...


Check with BR Wholsale, Marshall Mi or Marysville Marine, Marysville, MI they do some service work and may have additonal insight on how to resolve or find parts.

Jun 17, 2011 | Xantrex Technology Heart Freedom 20 12...

1 Answer

I have a kohler 5E marine generator It will blow the input fuse when cranking. If the voltage regulator is disconnected it will start but only run if the start switch is pressed. Any Ideas?


I have the same genset. Just fixed a similar prob with it. Mine would intermittently blow fuses at first then started blowing them as soon as trying to start. I also saw a puff of smoke from reg when it did run at one point. Carefully check stator wires for shorts to ground. Make sure to lift the stator wires that are grounded in control box. If no grounds replace control board and reg board. $400+. Cross your fingers and try it. Mine worked, thank God. The pc boards are marginally designed and built. The relays, diodes and other componants are way too undersized for the application and can not survive a lot of cycling
on and off. When starting genset make sure to slowly apply loads to it. Same thing when shutting it down. Dont shut it down with any load. It wont take it
Good luck

Feb 15, 2011 | Electrical Supplies

1 Answer

1975, 7.5 Kohler marine genset, runs only with the reset depresed


Can't search for a manual without model, type, serial, etc numbers...

A few things to take a look at:

1) Oil level / pressure sending unit. This is normally bypassed as long as the start switch is pressed. When engine starts, and switch is released, engine will die if sending unit is defective, or you are low on oil.

2) Exhaust temperature sensors. Older units were notorious for burning these up.

3) Cooling Water Temperature sensor. These cause trouble often, but mostly due to water pump impeller being eaten away by galvanic action and not able to pump water as effecively. End result is water temp higher than normal, which trips the switch, which kills the engine.

4) Alternator (generator) output not as it should. If output doesn't rise to proper level within a few seconds of engine start, the engine will be shut down.

5) Choke not working as it should

6) Bad fuel, bad fuel pump, clogged fuel filter.

May 26, 2010 | Kohler Electrical Supplies

1 Answer

Heart Freedom 20 will not default to generator power.


First of all it is possible that the is no power going into the inverter,trace the input source to see if the connection from the generator is ok. check the fuse if it is broken if not, the contactor or switching relay in the inverter is bad

Apr 06, 2010 | Xantrex Technology Heart Freedom 20 12...

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When I run my generator - a Yamaha EF2400S to my Zantrex Model MS2000, it will not accept the power to charge my batteries. The generator's voltage and frequency, when checked, are within acceptable...


the power coming from your generator is probably "dirty", full of spikes and surges from the generator. If it accepts shore power and not gen power, then the generator is the most likely cause. If the generator in unregulated, you are stuck, but it could have a failing voltage regulator board, or Yamaha may have a solution.

Jan 09, 2010 | Xantrex Technology Heart Freedom 25...

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Heart interface 30 marine quit charging


the charge fuse may have broken or the charger is bad

Jul 15, 2009 | Xantrex Technology Heart Freedom 30...

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