Why does my Onan diesel generator shut down?

I have a 7500 Onan diesel generator that runs for a minute and shuts down with a high coolant temperature fault code, but the coolant level is good and nothing feels hot, just warm. I went ahead and changed the fuel filter and air filter hoping for an easy fix but the same problem exists.

What do you need to know about the Onan generator?

The Onan power generator is a solid machine specifically designed to meet the energy demands of the average house owners as well as RV enthusiasts. If you want something to sustain your RV facilities/appliances or simply in need of a backup power source, this unit shall serve you well.

Why does the oil pressure switch on Onan generator stick open?

The oil pressure switch of Onan generator often sticks open in case the unit has not seen any use for an extended period of time. In many cases, the situation could be resolved by multiple start/stop cycles, some light tappings should work as well. 2. Defective Control Board

What’s the problem with the Onan Cummins Generator?

Onan cummins microquiet generator has a hidden defective part. If your onan generator runs fine then stops, this is likely the free simple fix. It’s incredible how the fix is this simple. Loading…

What should the resistance be on an Onan generator?

Use the multimeter to check the resistance between pins 9 and 10 of the plug, the appropriate reading would be around 22 – 28 Ohms. If the reading is too low, there could be a short in the rotor. On the other hand, if reading is too high, it’s highly likely that there is a ground in the rotor .

The oil pressure switch of Onan generator often sticks open in case the unit has not seen any use for an extended period of time. In many cases, the situation could be resolved by multiple start/stop cycles, some light tappings should work as well. 2. Defective Control Board

Why is my Onan generator producing low AC voltage?

If field flash voltage seems pretty normal, the regulator could be the source of problem which you could determine simply by running 12 volts through a diode to the regulator pin 9. In the case the generator starts producing normal or slightly low AC voltages after that, the regulator is definitely defective.

What to do when your generator shuts down?

Solution: The best way to deal with this problem is to reduce the load on the generator and then start the generator again. Now you can add the loads according to the size and capacity of the generator. Another way to ensure that the generator does not shut down due to overloading is to hear the sound of the generator.

Why does my generator run for a few seconds then stops?

Low Fuel – Sometimes a very minor problem like less fuel in the fuel tank can also cause your generator to run for a few seconds and then stop. The generator may have enough fuel to get started a couple of times or run without the loads but when you out the loads, it stops.

How many hours does a Fleetwood expedition diesel generator last?

There is only 223 hours on the unit, which is in a 2005 Fleetwood Expedition. Any help would be appreciated. Thanks, I HAD SAME PROBLEM A COUPLE OF YEARS AGO.

I have a 7500 Onan diesel generator that runs for a minute and shuts down with a high coolant temperature fault code, but the coolant level is good and nothing feels hot, just warm. I went ahead and changed the fuel filter and air filter hoping for an easy fix but the same problem exists.

There is only 223 hours on the unit, which is in a 2005 Fleetwood Expedition. Any help would be appreciated. Thanks, I HAD SAME PROBLEM A COUPLE OF YEARS AGO.

Where is the thermostat housing on a diesel generator?

I think the thermostat housing is attached to the cylinder head on the back side of the engine (the side where the water pump and belt is located). Also here is part number if you have one of these generator models, HDKAH/J/K/V/TU. Part number 193-0318.

What is the part number for a diesel generator?

Part number 193-0318. It will be necessary to remove the top cover from the generator in order to gain access to the sensor.

When does the Onan generator send out an error code?

That may be a bad pun, but it is the truth when it comes to Onan generators. When something goes wrong, the generator will send out a code to tell you the problem. If you blink, you may miss the number of the error code. How to Read Onan Generator Fault Codes: It’s not hard to read the Onan Fault Code blink system, once you get used to it.

Use the multimeter to check the resistance between pins 9 and 10 of the plug, the appropriate reading would be around 22 – 28 Ohms. If the reading is too low, there could be a short in the rotor. On the other hand, if reading is too high, it’s highly likely that there is a ground in the rotor .

That may be a bad pun, but it is the truth when it comes to Onan generators. When something goes wrong, the generator will send out a code to tell you the problem. If you blink, you may miss the number of the error code. How to Read Onan Generator Fault Codes: It’s not hard to read the Onan Fault Code blink system, once you get used to it.

What does code 12 over voltage on Onan mean?

Code 12 – Over Voltage This problem comes from a faulty inverter and that part is overcharging the generator. The only way to solve this Fault Code problem is to take the generator to a qualified Onan dealer or repair shop. Alternative sources for this code may be a lack of fuel or a clogged filter problem.

Why does my Onan generator keep flashing code 36?

Code 36 seems to be the catch-all error code and you cannot assume you have the right fix for every time the code flashes. Sometimes, the control module does not see the correct voltage for both legs of the generator. When this happens, it still sends out a code 36.

The Onan power generator is a solid machine specifically designed to meet the energy demands of the average house owners as well as RV enthusiasts. If you want something to sustain your RV facilities/appliances or simply in need of a backup power source, this unit shall serve you well.