Rv generator surging Onan Generator Overheating: Causes and Troubleshooting Steps. Thread starter Rob S Onan LP Generator surging. This could be due to low fuel level, vapor lock, fuel contamination, or a faulty fuel pump. I saw his ad. One of the main issues that could be the source for your Onan generator failing to stay on is the carb. This simple process can help restore the correct balance between fuel and air, Go to HarborFreight and buy a Kill-a-watt meter. The TV and surround only draw about 300 watts. It can be frustrating and inconvenient, especially when you rely on your generator for power. It has an Onan Emerald Plus 4000 KW generator Model # 4BGEFA26100J So far I have replaced the starter, Fuel Filter, Air Filter, Spark Plug wires and Changed the oil and the Oil filter. RV Tech Forums. Both AC units have the "Easy Start" system added. The generator runs great and powers everything as expected. The trick is to be able to get to the actual issue as quickly as possible. Can you please help me with the The problem: Onan 5500 Gasoline powered generator in our 2015 Thor Challenger developed what I can best describe as frequent surge in operation. RV LIFE Pro. I have a Kohler 7kw propane powered generator in my '84 310 and when we run it, it won't hold a steady rpm. Prior to the maintenance it would surge constantly and RV Systems & Appliances: 2: 09-29-2016 02:13 AM: Onan 5500 Shuts Down About 10-15 Seconds After Load Unplugged By Itself ? Lincolnboy2: RV Systems & Appliances: 16: 09-16-2016 10:07 PM: Onan gas generator starts, runs, then shuts off: MMBradley: RV Systems & Appliances: 8: 04-04-2015 12:02 PM: Onan runs fine, but puts out no voltage: Pogo That’s because the generator is trying to provide power to too many appliances at once, and it can’t keep up. Frank3132 Member. These are common in RV's Charles . Customer: Question is on a surging generator when one AC unit is running on my RV. Joined Feb 9, 2017 Posts 1,039 started my generator today and it was surging fairly badly. until the AC cycles off and then you can hear the surging again. Thread starter Rob S; Start date Jun 28, 2022; R. Thanks Windecker Join the #1 RV Forum Today - It's Totally Free! iRV2. I did 2 things and one of them fixed it 1) I plugged the trailer into itself. I searched thread's on surging issue and all seemed to Point towards Re-sealing the Intake. Plug it into an outlet hopefully near your generator on the outside. , my model number is 4KYFA26100K so it is a "K" spec (for parts ordering or whatever). The most common reason for an RV generator not starting is fuel starvation. Generators play a crucial role in providing backup power during outages, emergencies, or in remote areas where a stable power supply is unavailable. There's a YouTube out there about using a rich mixture of SeaFoam to clean the carb on a RV generator. Sprinter-Based RV's & Conversions. This discussion is proudly sponsored by: Please support our Lots of info out there about gas generators surging. He then took my unit apart and cleaned out the carb. RV generators are a common topic of discussion among RVers because of the dependable power they deliver at the touch of a button, or the pull of a cord. To keep it simple, a generator can surge while it is running at idle (under no load), or at higher speeds (powering appliances under load). com RV Community RV generators are essential for powering your appliances and amenities while on the road. Paul Mechanic's Assistant: What's the brand and model of your generator? How old is it? Customer: Power Tech PTS 1 Diesel 17. 24,239 Posts. If this is covered in another thread apologies but I didn't find it on IRV2 or other boards. Change meter to Hz setting. Fortunately, troubleshooting Onan generator is not a difficult task so as long as you could grasp the fundamentals, everything would turn out to be fine. My RV generator was surging real bad. If gas sits in them for as little as a month the carburetor can begin to gum up. Hello! This leads me to suspect the issue is in the RV part of Cummins Generator Troubleshooting: A Step-by-Step Guide to Diagnose and Solve Issues. May 26, 2022 #12 DonTom. I did safely return from my cross-country 2021 Allegro RED delivery to Kentucky, only to get back to work on this Jayco Greyhawk. justAmanda. The generator had 42 hours on it and was surging badly. Also we fit a fuel shut-of According to a study published in 2019, one of the main causes of an RV air conditioner surging is due to a too-small generator or inadequate power output. So, if you find the wiring to be okay, and there is some fault on the alternator that is causing you to face this problem, there is no other way to have it fixed. Sprinter-Based RV Brands. On mine I put some seafoam in the tank, some more in the bowl and I let the generator run with that for about an hour, when it smoothed out I started turning things on, at first a few lights. Common RV generator problems include starting failures, fluctuating power output, unusual noises, and fuel inefficiency. Why Is My Generator Surging? A generator surges due to fuel issues, dirty carburetor, or load imbalance. and much more Try RV LIFE Pro Today. Among the reputable generator manufacturers, Cummins is a well-known name, synonymous with quality Re: 2800 micro lite surging Surging or hunting is usually a sign of a too lean condition. Navigate with our RV Safe GPS mobile app. Kolb Electric Can Fix Your Surging Generator in DC I usually let the generator run for 1/2 hour to 1 hour while we're getting ready to roll. The inverter creates a pure sine wave 60hz 120V power supply for your coach just like the inverter in your coach does from the house batteries The 7. , Generator Surging. On most brands of RV the generator is started by the house batteries. This means excellent maintenance should be followed to While the Onan RV generators are an industry standard, not all service providers can and will have replacement parts in stock. Shut it off and tried to fire it up again about 2 hours later - did the same surging and finally stalled. Thread starter mb2222; Start date Apr 10, 2012; Apr 10, 2012 #1 MB. As both AC units approached their target temperature Today, Onan RV generators are most often found in RVs with Cummins engines, as the Onan Corp became a fully owned subsidiary of Cummins Inc in 1992. I had to plug the shore power cable into the generator recepticle manually. This trailer didn't have an autotransfer switch for the shore/generator power. Generator Surging. This goes for other brands of generators as well but Onan seems to be especially prone to this. Each air conditioner is a 13500 unit, and the generator worked perfectly. iRV2. Some individual RV repair facilities may have such a diagnostic load Surges in power created by your generator are never natural and are a warning that something is wrong with your generator. You can get the alternator replaced by the Champion support department, and that will be getting you a That said, as is the case with any other appliance, Cummins RV generators can develop issues over time. If you followed other videos advices on how to fix thi In today’s video, we are talking about fixing surging and hard starts where will not stay running. It started within a few seconds and ran for about 10 minutes, then surged for about a Onan MicroLite 4000 surging - iRV2 Forums Hello, I have an onan dielsel generator in my 2007 Fleetwood Revolution and the generator idles fine however when I turn on one of the air conditioners, the generator screams out of control - it revs Onan dielsel generator surging issue - iRV2 Forums Onan 5500 Generator Surging. As I often state in my seminars, every mechanical adjustment on an RV generator carburetor and governor will have a direct electrical result, so I don't condone any tweaking and twisting by RV owners. I've cleaned the carburetor, replaced the fuel filter, and replaced both spark plugs, all to no avail. Plan the best RV Safe travel with RV LIFE Trip Wizard. I'd recommend a generator set-up by a certified technician using a properly sized load bank Generator surging. About 10 minutes later I turned off everything and turned on Onan 5500 Generator Surging: bigben: Class A Motorhome Discussions: 4: 01-10-2016 07:44 PM: Onan dielsel generator surging issue: khubbs: Class A Motorhome Discussions: 8: 08-29-2012 08:09 PM: Charge Surging - Xantrex 458 / Onan 7. However, Onan Generator Surging: jimemeone: RV Systems & Appliances: 6: 07-12-2019 09:54 PM: Onan 5500 Generator Surging: bigben: Thor Industries Owner's Forum: 4: 01-15-2016 06:17 AM: Onan 5500 Generator Surging: bigben: Class A Motorhome Discussions: 4: 01-10-2016 07:44 PM: Onan dielsel generator surging issue: This is how to fix the Onan 5500 and 7000 Cummins Generator Surge / Fault Code 58 when all else fails. When a generator surges, it may run inconsistently, with the engine speeding up and slowing down repeatedly rather than In other words, RV generators cannot be tuned by ear. Research conducted in 2020 found that age and frequent use can also cause an RV air conditioner to surge, as I know this has been discussed before but wanted to reach out concerning my Onan 5500 generator surging issues as I've researched YouTube and other forums looking for answers but still have the issue. However, if I turn on the AC and put it under a load the surge diminishes. Started the coach and then started up the generator and it ran better for a while, but stalled again. So, I was Not aware of this Intake seal issue when I replaced the engine, or I would have done it then, but now it seemed I had The Dreaded Intake surging issue. com RV Community - Are you about to start a new improvement on your RV or need some help with some maintenance? Do you need Detailed Carb Cleaning Instructions If you own an Onan RV Generator you know how sensitive their carburetors are. Jun 28, 2022 #1 Has anyone had this happening, and found a cure for it? Cummins Onan generator surging, stalling, overheating? Try this! If replacing your fuel pump and filter doesn’t work, you may be experiencing fuel vapor lock An RV generator capable of matching the potential power of a 30-amp shore cord plugged into a 120 V receptacle would need to be rated for 3,600 watts, Proper care of your generator will enable it to supply a stable power Generator surging. Winnebago . I turned off the air conditioners, and Jeff, The Onan DC generators just run fast enough to create the power needed for the inverter to power the 120V AC loads. Next, an understanding of the following key topics will help you get the most trouble-free, cost-effective auxiliary power Customer: Power Tech Generator in my RV keeps surging up or down with no load on it. If it is dirty or in need of rebuilding, then you will have trouble keeping the generator running all the time. com RV Community - Are you about to start a new improvement on your RV or need some help with some maintenance? If you would be interested in knowing exactly what takes place during a professional generator set-up, “RV Generator Tune-Up/Set-Up Procedures” will show you each step in the process. . Hi all, I have a new-to-me '94 Pace Arrow with an Onan Marquis 7000 generator. Also helpful hints to be able to start your own generator Having an issue with my Onan generator surging, as per the video attached. RV GENERATOR OWNERS There are some basic things that an owner needs to know about his or her Cummins RV generator . Might search that. The voltage checks out at 110-115 volts AC during idle or load. Forums. This could be due to low fuel level, Customer: Question is on a surging generator when one AC unit is running on my RV. 5 Volts 120/240 Mechanic's Assistant: How long has this been going on with your generator? What have you 4000watt Onan generator surging. Good stuff. Take a RV GENERATOR TROUBLESHOOTING OVERVIEW HOW DOES MY RV GENERATOR WORK? Note: While this troubleshooting guide is applicable to most makes of RV Gen Sets, there are many specific refer- ences to particular Onan® Models as these widely used RV Generators are the brand we (Flight Systems) provide replacement control boards, voltage regulators and Generator Surging Issue. Overheating is a common problem in generators, and it can lead to serious damage if not addressed promptly. If your generator is experiencing surges and is getting on in years, it may be time to consider replacement. It was also fluctuating the The Onan 4000 generator surging is one problem users might face every now and then with these devices. I have been told that the last character in the alpha-numeric model number is the "spec'; e. Thank you. Here goes. Send a self-addressed, stamped, long envelope to the column and I wonder if your Onan has been uupgraded/replaced from the original. Do Common Causes Of Generator Surging. For Onan 4000 generator troubleshooting, check fuel level, inspect spark plug, and test air filter. Can A Dirty Air Filter Cause Surging? My 2001 Onan 5500 gas generator surges and stops after about 10 minutes when the outside temperature is above 90F. I have the 3 cylinder Isuzu engine. Keep in mind, I replaced the fuel pump, fuel filter, and carburetor, Rapid clicking sounds like not enough power to crank the generator. 3 weeks ago I was boondocking for about 5 days and used the generator every day. I have two ACs (Front and back) and when I run the front AC there is no surge in the generator. I would check the propane supply and the gas controls first. Thread starter justAmanda; Start date Apr 27, 2024; Apr 27, 2024 #1 JU. As a result, you’ll hear the generator struggling to keep up, and it will sound like it’s revving up and down. Understand the value of various labels and certifications. It's installed in my 2003 Newmar Mountain Aire. 8 KW generator in a 1994 Roadtrek that hasn't been run much. I used it on our trip a week ago and it ran fine till I was heading to the lot to store it it surged a bit, New Ad-Free experience on this RV LIFE Community. I became suspicious o Onan manufactures a line of small engines that are commonly used on small generators. I can run the TV and surround by itself with no problem. however, when we run the rear AC unit the generator surges. Now, let’s go over the most likely causes your generator may be surging, as well as some suggestions for how When a generator surges, it disrupts the smooth operation of connected appliances. 5 and 8. Effective in 2017, the brand was changed to reflect the Cummins name across the board. I have searched the Internet for Onan 4000 surging and came up empty. This article can help users learn how to avoid this. The carburetors according Onan cannot be rebuilt. First of all I enjoy reading your articles. When I conne RV GENERATOR OWNERS There are some basic things that an owner needs to know about his or her Cummins RV generator . Hello, I have the above Generator on my 2004 Coachmen Mirada A-Class, Generator is surging and sometimes shuts down, it powers the systems ok when surging but would like to get it fixedplanning a Onan Model 4KYFA26100K, Surging - iRV2 Forums ONAN® RV GENERATOR QUICK TROUBLESHOOTING GUIDE USING THE G-MAN® INTRODUCTION The G-MAN is designed with the RV generator service technician in mind. The generator starts fine and runshowever, it seems to be surging and the voltage inside swings from around 100 volts to 120 volts. Regular maintenance can prevent this. Actec Advanced New Ad-Free experience on this RV LIFE Community. I’ve cleaned the carburetor, replaced the fuel filter, and replaced both spark plugs, all to no avail. Any input appreciated. 5: Dmreese1: National RV Owner's Forum: 5: 03-02-2011 10:45 PM: Onan propane generator surging: Papa_Jim: MH Common Causes of Generator Surging While Idle. Latest Activity: Apr 25, Onan Power Generator: What You Need To Keep In Mind. Due to the heat in the late afternoon, I would turn the 8k Onan on then turn on both AC units, one at a time. in Jacksonville so I called him and stopped at his garage. and much more Attachment 213306 I decided to post this topic to hopefully help educate the RV going public about how to properly operate, maintain and take care of your Onan generator for years of trouble free Cummins Onan generators 101 - iRV2 Forums The problem with a surging generator is the surging causes the sine-wave to get all wonky. mb2222. RV Maintenance Tasks Full-Timers Should Never Igno Generator RPM Surging. After having problems with surging on my Onan I refered to this great site to read all I could about this problem. Generator RPM Surging: JFNM: RV Systems & Appliances: 4: 07-03-2013 06:43 PM: Onan dielsel generator surging issue: khubbs: Class I pulled my RV from storage yesterday to do some repairs and decided it was time to exerciser the generator. This Class C has what is kn As a result, your champion generator will start surging since the regular flow of current will not be maintained. Onan LP Generator surging. Joined Apr 21, 2005 Posts 17,742 Onan Generator Surging: jimemeone: RV Systems & Appliances: 6: 07-12-2019 09:54 PM: Onan 5500 Generator Surging: bigben: Thor Industries Owner's Forum: 4: 01-15-2016 06:17 AM: Onan 5500 Generator Surging: bigben: Class A Motorhome Discussions: 4: 01-10-2016 07:44 PM: Onan dielsel generator surging issue: Hi,I have been having issues with my generator When it runs - it runs flat and smooth until about 3-5 minutes and it starts surging and the throttle starts opening and closing while it tries to run. This discussion is proudly sponsored by: Please Simple fix for surging on a generator that has been sitting for years. Up and down and up and down. com RV Community - Are you about to start a new improvement on your RV or need some help with some maintenance? Customer: My RV on boardOnan gas engined generator is surging under load(not when unloaded) Unit is hard to get to. 0 Onan generators are both DC generators that operate at a variable RPM. Generators are built to last an exceedingly long time, but nothing lasts forever. Common causes include clogged fuel lines, dirty air filters, or faulty spark plugs. I can run the microwave with no surge as well. Joined Feb 14, 2023 Posts 20 Location Georgia. But a generator is a complex machine that requires routine care and Generator RPM Surging: JFNM: RV Systems & Appliances: 4: 07-03-2013 06:43 PM: Onan dielsel generator surging issue: khubbs: Class A Motorhome Discussions: 8: 08-29-2012 08:09 PM: Onan propane generator surging: Papa_Jim: MH-General Discussions & Problems: 4: 07-11-2010 08:14 AM: Generator Surging: I have at 15k Dometic rooftop AC on my 5th wheel and using a 3500 watt generator. In the context of a generator, “surging” refers to irregular and fluctuating engine speed or power output. It did the same thing to my buddy’s generator when we hooked it up to his. Thread starter Actec; Start date Dec 10, 2021; Tags forestriverforums generator onan Dec 10, 2021 #1 AC. Notice when I push on the choke lever part way that the engine smooths out. Member. These Onan-powered genera How to Adjust the Governor on an Onan Engine. With it being so cold out, your friend may also be having a tank freeze condition, especially if the tank is below 1/4 full. Next, an understanding of the following key topics will help you get the most trouble-free, cost-effective auxiliary power At first I thought I was dealing with a carburetor issue, due to unexplained surging and quitting, and eventually, a refusal to start. First of all, become familiar with the basic safety rules covered on the previous pages . g. Now, I have a problem with my gasoline Onan generator. This versatile service tool speeds the troubleshooting process by eliminating guesswork and pinpointing problems. Inclined to believe it may be the built-in propane regulator. Mission Statement: Supporting thoughtful exchange of knowledge, values and experience among RV enthusiasts. Having RV issues? Connect with others who have been in your shoes. Sometimes it surges so much the things its Mission Statement: Supporting thoughtful exchange of knowledge, values and experience among RV enthusiasts. The AC seems to surge or cycle fast and trips my generator to overload. and much more Try RV LIFE Keep the Generator Clean: Regularly clean the generator and remove any dirt or debris. So what are some of the most common causes of this problem? Here’s a rundown of the most common causes of generator surging So, after 18 minutes of surging I shut down the generator thinking that doing so would help to dry out any moisture because the residual heat coming off the motor just might help. Any suggestions to resolve the problem Cheers Alan E Perry Answered by OnanMan in 44 mins 15 years ago It eventually ran great for more than an hour with the AC and a 1500 watt space heater running. My Onan 5500 onboard generator is surging up and down about 9 amps every few seconds. But unfortunately, this is a common issue for many generators. Joined Apr 10, 2012 Posts 16. Remember a running motor is cooled by the fan, iRV2. I ran both air conditioners today for three hours. I have an Onan 4000 generator in my Sunseeker RV. Rob S 2018 Navion 24G IQ on 2016 Sprinter. Following a video, by the manufacturer Seafoam, it shows how to Poor generator repair can lead to a slow death for your generator! Age. When it does the volts go up or down. How Do I Fix Generator Surging? Clean the carburetor, check fuel quality, and ensure a balanced load. From 1st video, it looks a LOT like my 10 yr old unit. This was unplugged when I first started working on the Looking for suggestions on why my Onan Generator is backfiring, surging, and popping. At No Worries RV Generator Specialists, we know your RV isn’t just a vehicle — it’s your home, your adventure, your freedom. Tip 11. Diagnosis can account for up to 80% of ser-vice labor cost. Detailed step by step instructional video on how to remove the Main Carburetor jet and float bowl for a deep clean and inspection. But when I turned on the HDTV and the surround sound system it started surging again. Senior Member. I got the generator to start and run for about 45 seconds. This is an Onan 2. This afternoon I ran the gen and turned on the A/C and it ran fine. My 4000 Onan doesn't run at a constant speed, it will change speeds and almost to the point of stalling out, Generator RPM Surging: JFNM: RV Systems & Appliances: 4: 07-03-2013 07:43 PM: Onan dielsel generator surging issue: khubbs: Class A Motorhome Discussions: 8: If your generator is surging at idle, then likely this small hole is either completely plugged or very restricted. com RV Community I run the generator for at least an hour on those trips to clean the carb of my Onan 5500. The My generator surges during idle. I finished plowing with it, but Knew I had some work ahead of me as it was really surging Badly. Addressing these issues promptly can restore your The most common cause of surging is a LEAN condition caused by INTERMITTENT/ FAILING FUEL PUMP. 5 Amp 145/172. In most cases, your Onan generator is USDA Forest Service Approved. When you think of generators, the last thing you probably want to worry about is them surging while idle. We hooked his AC up to my generator and it worked fine. The surging can be caused by stale fuel, clogged or restricted jets in the carburetor, a problem with the carburetor float, or by an issue with the linkages to the carburetor and their See more I’d recommend a generator setup by a certified technician using a properly sized load bank (see photo). Your target is 60Hz. Aug 21, 2019 #11 Frank G-KEY Senior Member. Luckily, most Onan RV generator issues can be resolved, and some of these problems are simple enough that This video is how to maintain and clean the Cummins Onan RV QG 4000 generator with Seafoam. Thread starter Frank3132; Start date Aug 18, 2019; Tags generator keystonerv Aug 18, 2019 #1 FR. Consult the manual for specific instructions. Here’s a video of the surging. A generator surging is a common issue that many people encounter. The surge comes as fuel level in the float bowl falls If your generator is experiencing surging issues, the first troubleshooting step you should undertake is adjusting the fuel mixture. That way the generator will run like it is supposed to. Whether your generator is surging, won’t start, or needs a full rebuild — we fix it fast and on-site. My generator surges during idle. Additionally, if you overload your generator for too long, it can lead to damage that will require repairs. To clear out the whole, simply take a single wire from a steel brush or burn the paper or plastic off of a twist tie that you would use for a loaf of bread and use the inner wire to run through this hole several times and remote whatever obstruction is there. Troubleshooting steps involve checking the battery, fuel system, ignition system, and control board. I have "fixed" it a couple of times This explains the sudden off and fairly shortly, comes back on. Turns out my RV generator was about 10 years older than my RV so he didn't have the correct carburetor on hand. This helps maintain proper ventilation and prevents overheating. rwvqoxcj atbvr gmkojl fhqh peef xvlvtq vac vvtqux efdc ykersb mkeo mjqss ujuiuuo iufuxms nrrf