Why does my Onan generator shut down soon after it starts?

But gas issues may not be the only reason why your Onan generator shuts down soon after it starts. You could be having an electrical or carb issue. If it is the carb, then you should have some sputtering before it dies.

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 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.

How to fix Onan generator error code 36?

The key to fixing the error code 36 is to try the simple things first. With this starting point, you may find the solution quickly and not have to spend a lot of money buying new parts. Take your time as well as you do not want to rush to judgment. Use a voltmeter to help you check the electrical side of the unit.

What to do when your Onan generator shuts down?

The wood absorbs the heat and should help clear the fuel line. Once the line is cleared re-attach the fuel line and start your generator. Another issue may be the fuel pump itself. If you can, insulating it may help prevent vapor lock and other fuel delivery issues.

Why do I get code 36 on my Onan generator?

One of the main issues with a code 36 is that it is applied to more issues than just the fuel level. It can be signaling a problem for the fuel pump, clogged filter, dirty carb and a lot more possibilities. 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.

Why is my Onan generator not producing enough spark?

Second, you can also take the fuel line off the fuel pump and see if enough fuel is getting through to the engine. A third issue may be the armature coil. If the generator is not getting enough spark, then the armature coil may be going bad and not producing the spark you need to run your generator.

When does the generator shut off in an RV?

The generator in my RV shuts off after running for approximately 25 mins, with or without a load. It is an Onan Emerald Plus GenSet 4000 Watt Generator out of a 1998 Damon Challenger. Gas tank is full.

What causes a generator to shut down after a few seconds?

With low oil levels, you can start your generator but after a few seconds, the temperature of the oil rises too quickly and it causes the system to shut down. When the oil level is too high, it also causes the sensor to force a shutdown. Mostly generators with low oil level auto shut-down feature turn your generator off.

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.

What’s the resistance of a remote Onan generator?

If you have help, remove the connector from the control board at the genset and use an ohmmeter connected to pin 3 and chassis ground. Have the help push the dash switch Up to start (down is to shut off the genset in my rig, and the lightning bolt is on the lower half of the switch). Your resistance measurement should go down to less then 2 ohm.

Where is the dash switch on an Onan generator?

What’s the problem with my Onan 5500 RV?

The problem is the Onan starts up and runs for about 10 minutes then shuts down. It will not restart immediately when I try. Just cranks and cranks and eventually I give up. Then I wait about 30 minutes and the gen will start and run for 10-15 minutes and then shut off again. Anyone have this problem? Any ideas?

What does the code on the Onan generator mean?

When you see this code, it indicates that there is a problem somewhere on your Onan generator. You will get 3 flashes then a pause, then 3 flashes, then a pause and on it goes till you press the button to get the secondary code. The secondary code will give you the specific problem that is wrong with your generator.

What should I wear if my Onan generator won’t run?

About the gears, a rugged pair of rubber gloves should be sufficient but to be in the safe side, wear facemask and goggles as well. Once you have everything on hand, it’s time to tackle the “Onan generator starts but won’t stay running” issue.

When does the Onan generator shut down code 36?

Onan Generator Code 36 Generator Runs For a Few Minutes Then Stops Onan Generator Stops Running When Hot Diagnosing Different Onan Generator Issues Error Code 36 Advice Some Final Words It is possible for your Onan generator to start up fast and quit just as quickly.

Why does my Onan generator start and quit fast?

It is possible for your Onan generator to start up fast and quit just as quickly. That is because many generator models are designed to shut down if there is a quarter of a tank of fuel left in the tank.

Where is the armature coil on an Onan generator?

One way to make sure it is the armature coil is if your generator needs time to cool down before starting up again. Usually, you may not be able to re-start the unit until 30 minutes have passed by. The armature coil is normally located next to the flywheel making it not to difficult to find and replace.

What happens when you release the start button on Onan?

5k onan gen set starts and runs fine [sometimes] then it 5k onan gen set starts and runs fine [sometimes] then it starts and runs as long as you press stsrt button when you release button you loose spark and engine dies .new board and fuel pump … read more Hank F.

Why does my Onan generator not start up?

If the generator is not getting enough spark, then the armature coil may be going bad and not producing the spark you need to run your generator. One way to make sure it is the armature coil is if your generator needs time to cool down before starting up again. Usually, you may not be able to re-start the unit until 30 minutes have passed by.

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 .

What do you need to know about an Onan generator?

Before any evaluation of the controls, regulator or generator can proceed, the Onan engine must have oil and fuel, be in running condition and the 12-volt battery charged. The electronic governor, 151-0752, on Models BGM and NHM, Spec B and later, must be functioning properly.

How to read Onan generator fault code Code 58?

Code 58 – Exhaust Gas Temperature Shutdown What causes this error code is a lean fuel supply, restricted exhaust system, bad ignition system, bad heat sensor, and other issues. To keep your warranty valid, you need to take your generator to your Onan dealer for diagnosis and repair. Code 81 – Exhaust Gas Temperature Sensor Open

What to do if your Onan generator starts then shuts down?

If there is no AC, proceed to check the field flash voltage through the field flash pin of the board. In the case field flash voltage is not present, the control board may be defective. If that happens to be the case, the “Onan generator starts then shuts down” issue could be taken care of by replacing the unit control board.

Why does the Onan 4K generator not have an oil filter?

For example, the Onan 4K generator doesn’t have an oil filter. On the other hand, you have to use the right oil and never use old oil to keep the generator from clogging up. Know the right level of oil, because over-filling will cause the generator to shut off just as too much would.

What are the safety features of an Onan generator?

Pay attention to safety features. Onan generators have a number of built-in safety features. One of these is the fuel cut-off switch so you don’t use all your gas running power though it would leave you stranded on the side of the road. Another is the low oil cut-off. If the generator is cutting off, check the oil levels.

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.

Can a 7000 watt Onan generator run a RV?

The 7000 watt Onan RV generators may seem like they can run everything in the RV, but you can cause it to trip safeties if you try to do too much. The over voltage protections in particular tend to engage when you walk into the RV and turn everything on. Tip 10. Service varies.

How long is the warranty on an Onan generator?

Onan warranties depend on the application. For example, it is common to see a three year or 2000 hour warranty on an Onan generator. If you’re running it nearly all day every day, that means you’ve blown through the warranty in a year. Another issue is the application.

What should I know about my Onan 4K generator?

Know the maintenance needs of your Onan generator. Onan has made a number of design changes that simplify maintenance. For example, the Onan 4K generator doesn’t have an oil filter. On the other hand, you have to use the right oil and never use old oil to keep the generator from clogging up.

Is the Onan 2800 generator running at all?

Last month my Onan 2800 ran perfectly, today I can’t get it to run at all. Here are the details: (1) Pushing in on the remote start/stop button inside the Roadtrek and also at the access cover at the generator get the same results. (2) I checked the oil and it is with the recommended level.

When to remove spark plugs from Onan engine?

This is a typical ignition module for an Onan engine. This is a typical ignition coil for an Onan engine. If you are getting no spark at the spark plugs, remove the plug wires

What do I need to start my Onan generator?

Getting the Engine Running Before any evaluation of the controls, regulator or generator can proceed, the Onan engine must have oil and fuel, be in running condition and the 12-volt battery charged. The electronic governor, 151-0752, on Models BGM and NHM, Spec B and later, must be functioning properly.

How often does Onan 4000 microquiet shut down?

Onan 4000 Microquiet. It runs great then just shuts down. SOmetimes it may run for an hour other times it may run 10 We use cookies to give you the best possible experience on our website. By continuing to use this site you consent to the use of cookies on your device as described in our cookie policy unless you have disabled them.

How can I get service on my Onan generator?

Onan is relying on network of contracted dealers to provide service for most of their RV generators. Service levels vary between mechanics and RV shops. Do your research before you bring in your RV for service. And verify that the RV shop is experienced working with Onan Cummins generators.

Why does my Onan generator shut down soon after it starts?