Many modern generators are now designed to shut down if they are overloaded. Sometimes the oil alert system in your engine is actually doing what it should. Sometimes it is faulty. According to the service manual, the LP generator's fuel regulator (148-1260) is a demand regulator. 03 - Generac Generator Fuel Cap. On the other hand, if the generator shuts itself off when you connect the load, it means that your overloading it. A quick search on Google reveals that all the Generac units with a G suffix are gasoline powered. Low oil sensor is malfunctioning. Mislabeled is more logical than a conversion. Contact Us. Home Efficiency Guide is an affiliate for companies including Amazon Associates and earns a commission on qualifying purchases. It is having a problem staying primed. 9734-1, it is listed with an * in the IM-NP-Q Generac Diagnostic Manual, with a note saying this unit is equipped with an LP gas fuel system. 'G' is usually used for gasoline and 'LP' for propane. I have a generac 6500 generator on a 2012 Coachmen Mirada 34BH. You must log in or register to reply here. Shut it down and let it sit overnight. On Thursday, March 3, 2022 at 9:45:11 AM UTC-5, Sterling wrote: > My generator is a older model generac generator i think it was built in the 90s it was in storage for about 20 years or so a friend of mine had it and gave it to me . But check the oil level first. You can replace the fuel valve by following the steps on this video: Fuel injectorscan clog up and block fuel from moving through the combustion system, causing several problems such as having difficulty when starting or when running on load. Dual fuel generators allow you to choose your fuel source based on fuel availability, your power output requirements, noise restrictions, and other circumstances. One of the main issues that could be the source for your Onan generator failing to stay on is the carb. Checking the whole fuel system will help you identify the cause of the fuel problem and fix it accordingly. Standby generators are relatively larger than portable generators. Here are some of Generac RV propane generator troubleshooting tips you should consider, Some generators will not start at all if the fuel tank is almost empty. To be on the safe side, always check the amount of fuel in the generator before starting it. Your generator might be low on fuel, which is why it stopped midway. I have become very fond of this product and tend to use it in all of my small engines. If your generator starts but wont keep running, here are two likely issues to check: A clogged air filter, vapor lock, or dirty carburetor often cause this issue. Oil level and air vent clogging. Friday, September 6, 2013 5:46:31 PM UTC-4, the generator control looks for normal voltage after start-up. As soon as the generator starts running, youll have to move it to the OPEN/ON position. If we believe that the carburetor could be clogged, wed first use a product called Seafoam to break up any gunk that might be in the tank before trying a different type of cleaner. You need a technician to do it for you. Standby propane generators are kept underground in the storage tanks and, therefore, able to produce quite large amounts of electricity. Most manufacturers of large generators use water as a coolant and radiator. Currently Active Users Viewing This Thread: 1. Open up your generators air filter housing and check to see if there are any clogged bits on your spongy element within your air filter. Still, cleaning is a cheaper option and if nothing else, its a good troubleshooting step to ensure that you have actually found the source of the issue. on a propane onan 6.3kw genny in a 1994 safari sahara 34'. CLICK THIS https://amzn.to/32J4ml2Check out these other informative videos: Best Way To Clean a Honda Style Carburetor https://youtu.be/uAHdhuDpeKwHow To Fix a Broken Starter Rope https://youtu.be/loN8rvShIXkHow To Fix a Generator That Won't Put Out Power https://youtu.be/z2_iYufvXcAHow To NOT Emergency Start Your Generator https://youtu.be/qUPlS__HuSAPlease SUBSCRIBE to my channel here https://www.youtube.com/channel/UCpqca7L2YYDN-BIHUQ2TfAA/?sub_confirmation=1 and dont forget to click the to turn on Video Notifications for more money saving videos, featuring all the top brands like Stihl, Husky, Husqvarna, Echo, Honda, Briggs and Stratton, John Deere, Craftsman, MTD, AYP, etc. RV Doctor's Orders: What to do if your RV generator will not stay running? I don't believe Generac propane generators have a primer button. How to quickly diagnose the low oil shut down on a small engine. Some of the reasons why your generator isn't running smoothly include the following: 1. If your fuse blows, you need to replace it and ensure it can serve more load than the previous one. Before the generator's engine starts, there is no oil pressure. The good news is that there are experts on the matter who can help out when it comes to the complex issues. Using products like these can help if the problem is old and gummy fuel. If there is too much oil in it, the circulation may not be smooth enough to properly lubricate the parts of the generators engine. Heres a video on how to clean your generators air filter: Vapor lockhappens when the fuel you use in your generator overheats and vaporizes too quickly (source). A propane generator is capable of producing high watt electricity at a go. You can unclog it with a needle. This sticky fuel can clog up the small jets and ports in . If I saved you some money with this video, please consider supporting my efforts with a donation https://www.paypal.com/cgi-bin/webscr?cmd=_s-xclick\u0026hosted_button_id=JRVNJVHEDHRD2Learn how to properly fix or repair your own outdoor power equipment if it wont start, bogs out, wont rev up, chain or blade is dull and doesnt cut good, needs sharpened, or simply just runs poorly. Other times, the generator starts but won't stay running for more than a few minutes. The drawback to this newer system is that every other adjustment you could have made on older models is not possible anymore. just can not happen. One o the reason that makes your generator from running continuously is clogging of the carburetor or bad fuel. However, you will still need to clean the carburetor, fuel filter, and other affected components at some point. There is a Generac propane generator, Series NP, that is a 6600 watt generator but I don't know if it goes by the NP-66G moniker or by the NP-66LP moniker. Remove the fuel line from the pump (not from the carburetor) on your genset, and install a piece of gas line 4 or 5 feet long. This is very frustrating, to say the least because your house/outdoor appliances are going to lose power without warning. Here are some of the things you can do toremedy overloading: If its a one-time thing, you might want to fill up the gas tank. The solution to this is simply calling in an expert especially from your generators manufacturer. Thought some rust got in plenum or regulator. If the spark plug has dirt on the end needed to ignite the air/fuel mixture, itll not produce the spark and the whole combustion process will fail. Their power strength usually lasts for some days. The propane generator is a device that is mechanically designed to provide the intended amount of heat. ), Why Does My Onan 4000 Generator Keep Shutting Off?, Onan 4000 Generator Will Not Stay Running, Download The Onan 4000 Generator Manual, How do I Adjust The Carburetor On My Onan Generator?. Locate the yellow wire on the crankcase. The other issue would be that the spark plug is malfunctioning. Also, add fresh fuel each time youre running the generator. As observed in the above solutions, combustion in the combustion chamber only works when an electric current flows in the carburetor and ignites the mixture of fuel and air. Firstly, remove the spark plug from the generator. Dear Gary, I have an Onan RV Marquis generator in my Airstream Land Yacht. If you forget to do this, the generator will run for a while then shut itself off. Other than these solutions, here are somemore thingsthat you can try: Its possible that your generator wont keep running due to a fuel or air delivery system issue. This one will need the skills and experience of a qualified expert to trace the flow of power from one component to the others to determine which ones arent passing current properly. Also, the power output might be reduced in an overload (source). Propane generators come in handy in situations where there are power loss and extreme weather conditions. However, if I wait 24 hours or so between starts, it takes repeated efforts to start again. Either email addresses are anonymous for this group or you need the view member email addresses permission to view the original message, It will only run for about 8sec's then stops. Is the CHP pulling RVs over to weigh and measure them? If this doesnt work, check the spark plug by pulling the recoil starter while holding the spark plugs end on the crankcase of the generator. If not, a vacuum or vapor lock will occur, which stalls the flow of fuel to the carburetor. If it doesn't, In the generator I had, it was a bad rotor for sure, and possibly a bad. Can You Put Vinyl Siding Over Stucco? Depending on the scenario in which the generator shuts itself off, the causes can be different with some quite easy to fix. My DP has a Generac Propane generator. Have a closer look at the temperature level as it stops running and notes it is not over 200 degrees. There are portable propane generators that provide electricity for a short period. In such a case, a vapor lock (vacuum) forms in the tank and prevents the flow of fuel out of it. You might as well just replace it with a new one because dealing with a clapped-out old piece of kit will always prove either useless or costly. As fuel is being sucked up by the engine, its being replaced by air coming in through a small vent on the fuel tank. In the case of a weak or non-existent, simply buy a new plug and install it. How is propane converted into electric energy? On older models, you will need to remove the bowl, clean it and then put it back in place. Every week we take a look back at the RV Doctor Gary Bunzer's answers to your tough questions. The first and most important step is to make sure that you are using a propane tank that has been refilled multiple times. These parts are interconnected with narrow pipes and small valves which can get damaged or clogged with time. If you have difficulty registering an account, logging in or need other account-related assistance, send us a message and well get back to you shortly. With time, the impurities it catches in the air clog up its spongy element. According to thisWelland Power, there are also times when overloading can cause your generators engine speed to decrease and shut down, which is when you plug in a load bigger than the generatorsemergency standby power rating (source). I do my best to teach you how I easily diagnose problems the fastest, quickest and most efficient way.Whether it be a handheld, two stroke, two cycle engine like chainsaws, weed eaters, string trimmers, grass trimmers, line trimmers, hedge trimmers, strimmers, brush cutters, leaf blowers, or four stroke, four cycle units like lawn mowers, pressure washers, generators, ride on mowers that need parts installed or replaced, Im your guy.Ive been a small engine mechanic for many years so my videos are loaded with tips and tricks that I have learned and want to pass on to you. Onan generators are supposed to have a low oil shut-off mechanism that will turn the engine off when it detects that the oil levels are too low. The occasional faulty sensor can stop generators from turning on even though theyre not yet done working. Some of the reasons your generator wont stay running include the following: The safest way to start and use a generator for power generation or other task is to start it, let the roar become smooth then connect the load. The problem would be an overload. what kind of fuel do you smell when you are trying to start and when it is running.??? If this problem persists, you should get your battery charged with an external source then reattach it to the generator. It does it 4 or 5 times then shuts down. The motion of the piston then moves the rest of the engine leading to the production of power. Here's a quick list Unfortunately, its best for a certified RV technician to troubleshoot and diagnose most of these situations. No carb, but it does have airbox and no openings i can see, On Sat, 6 Feb 2021 16:30:58 +0000, Mike H. My generator is a older model generac generator i think it was built in the 90s it was in storage for about 20 years or so a friend of mine had it and gave it to me . And oil level is good. Leakages can also occur on the fuel system either in a valve or on the body of the pipe. Further, you can check the exhaust. Heres how you check if its a problem with the fuel filter or the fuel pump: There are times when fuel is restricted because of a bad fuel filter and your generator cannot get enough of it to continue working. Tanks that have not been filled multiple times will have air trapped inside of them causing the fuel mixture in the carburetor to be too lean. This is a common problem, it occurs when the devices connected to the generator draw more power than the generator is providing leading to short. If you choose to try one of the suggestions made in this video, you do so at your own risk. Find the right portable source of energy for all your crafts, Generator Wont Stay Running: Causes & Quick Fixes. You can also make sure all the plug-in contacts and wire connections are clean, dry and tight. There also exist automatic and manual propane generators. Also, ensure the empty tank is full and there no leaking. If its not opened when running the generator, the engine will run out of fuel and shut down. The generator also requires enough AC voltage to keep it rotating. This can occur whether the oil is too high or too low. The reason for this is that Seafoam might potentially ruin/damage some components of your generator if used incorrectly or for too long. (link to Amazon). Common Problem #1: The Generator Won't Start A Faulty Plug Check The Main Control Switch No Or Low Fuel Cold Engine Common Problem #2: The Generator Stalls During Operation A Faulty Spark Plug Dirt Unclean Carburetor Common Problem #3: Overheating Low Coolant Leakages Conclusion Duramax generators are pretty efficient. If yourgeneratorhas a circuit breaker, it will stop working when you work your generator above capacity (source). Both of these sources are easy fixes as you can plug the holes with duct tape or replace the fuel line. It takes a while to start, even when I hold the primer button down for an extended period of time. This, in turn, will lead to problems with the engines operations. Over the past two decades, my family has rehabbed houses and contracted new home builds and Ive learned a lot along the way. -- posted. Sometimes it is faulty.. Sometimes the oil alert system in your engine is actually doing what it should. Test the voltage across the 2 exciter wires. The fuel system is made up of the fuel tank and other parts such as the carburetor, fuel filter and others. Clean it with a soft brush and some light tapping. If I shut it off and start it up again after only a couple hours, it will start easily. If this correct volume is not met, the generator will automatically shut itself off to prevent damage to the delicate electronics. The generators air filter is a crucial aspect of the ignition process. Some fuel components will evaporate over time and what remains is a sticky and thick fuel that can clog up the ports and jets inside the carburetor. The engines failure and inability to continue running is a more serious problem. In all the scenarios described above, the carburetor and combustion chamber wont be getting enough fuel and air to enable the generator run properly. Check the coolant levels and refill them to curb the overheating aspect. Spark plugs can wear out even if they visibly look fine. Or do some light tapping in the right place to help loosen the sticky oil. For this reason, it is good to read carefully your manual and set the generator correctly. (at least 4 times.) For a better experience, please enable JavaScript in your browser before proceeding. Causes of Generator Running Rough + Fixes. When your Champion generator runs then shuts off after a while, it could an issue with the oil level in the engine. But if its a complex one that costs almost the price of a new generator. If it is dirty or in need of rebuilding, then you will have trouble keeping the generator running all the time. Start the set and let it run for about 5 minutes. What Size Generator to Run Refrigerator and Freezer, Generator Wont Start (New & Used): Causes, Troubleshooting & Fixes, Generator Pull Cord Wont Retract: Causes & Fixes, How to Start a Generator: New, Used, With/Out Pull Cord, Generator Running Rough & Not Smoothly-Causes + Fixes, How to Connect /Hook Generator to House without Transfer Switch, How to Clean Generator Air Filter & Housing, How to make a Generator Quiet as a Cricket for Camping, 15+ ways to Secure Portable Generators from Theft & Damage, Portable Generators Safety Tips Checklist, How to Make Generator Safe for Your Electronics. The propane generator wont stay running. In the end, if these simple fixes do not work, contact an Onan technician to have him help you diagnose the problem. According toCar Bibles, a failing or bad fuel filter will result in fluctuating power, engine misfire, or stalling. During starting, the engine governor will keep the throttle wide open, and this combined with the relatively low RPMs while starting will prevent enough vacuum from being developed to operate the the vacuum switch reliably. Here's What You Should Know. For a clogged fuel valve, you will need to remove it from the engine the clean it before reinstalling it. Do not use this link to ask for help with RV-related issues; Ask those questions in one of our forums. Check out the Champion 4375/3500-Watt Dual Fuel Portable Generator - RV Ready! This could happen either immediately after you start the generator or after running it for 20 minutes. This usually happens when you leave fuel in the engine for quite some time. My DP has a Generac Propane generator. A generator may not stay running because of an overload, insufficient fuel, clogged fuel cap and carburetor amongst other mechanical issues. Brett Its a continuous process which ensures the generator runs smoothly. It is only a problem starting if it has sat idle for a day or more. While its rare, a dirty air filter cannot bring sufficient air to the generators engine. As it flows out of the tank, it leaves space which is taken up by air from outside. This air flows through a hole in the fuel cap. Ideally, its supposed to be between the MAX and MIN levels on the dipstick. Chances are that the number of electronics drawing power from generator add up to more than what the generator can produce. When you have had your generator for a very long time, you will be familiar with how it sounds and immediately know if it doesnt sound right. Further Reading: How deal with and Overloaded Generator. Improper use. They do not necessarily reflect the opinions, procedures and recommendations of Lippert, this publication or any of its advertisers. It may also occur the moment you plug in the power output This is quite frustrating given that itll be cutting off the power supply to the house or any other outdoor appliances. Join Date: Apr 2009. Another simple reason could be that the generator has run out of fuel while running. After shutting it down, move it to the CLOSED or OFF position. Let it dry before refitting it. This is a problem with starting. The solution to low fuel is adding fuel to the fuel tank. The generator will start, but once the button is released, it shuts off. You should also ensure that you use the right grade oil and clean the fuel filter. Bad oil can stick on the jets to the carburetor making the engine to stop running. Dont fill the tank until it overflows as it is a major fire risk.