All this code means is that there is an overheating problem with your generator. First, that is not a governor actuator, it is a fuel shut off solenoid. Step #3: Check spark plugs . You must log in or register to reply here. While there can be several causes for this condition, the most frequent cause is a failed temperature sensor. One solution is to check the manual. S8M 5303 built in 1969, converted in 2000, Bus Topics ( click here for quick start! Compatibility Guide. Replacing the fuel filter on gas and diesel generators is a bit of a chore and requires few tools, first you need to clamp the fuel . If the latter, then there is a problem with the generator part of the unit. Too many to post here. JavaScript is disabled. Other places to look include Craigslist and your local Facebook Marketplace, both of which occasionally have Onan RV generators for sale. We also have other RV parts from the mo 50 KW ONAN DIESEL GENERATOR / 1800 RPM: CUMMINS DIESEL ENGINE 4 CLY: MOUNTED ON BASE FUEL TANK APPROX 100 GAL CAP: 437 HOURS ON METER AT TIME OF LISTING: LOOKS AND RUNS LIKE NEAR NEW: 3 PHASE ALSO SINGLE PHASE AVAILABLE: 12 LEAD RECONNECTABL ONAN 45 KW DIESEL GENERATOR: 1 AND 3 PHASE: 120/240 -- 277/480 ALSO MULTIPLE VOLTAGES: PRICE $5900 OBO: Please Call 5O3-284-1156 .. No Text Please: CAME FROM A GOVERNEMENT AGENCY: 1290 HOURS ON METER AT TIME OF LISTING (LOAD BANKE Onan 7500 Diesel Generator - $3750 (Meridian), 7500 Onan Quiet Diesel Generator - $8500 (Lobeco, SC), 50 KW ONAN CUMMINS DIESEL GENERATOR 3 PHASE ALSO SINGLE PHASE: - $18,800 (OBO Portland, OR), ONAN 45KW DIESEL GENERATOR: 120/240 -- 277/480 1 AND 3 PHASE: - $5,900 (OBO Portland, OR). For sale used Onan 7.5 Quiet Diesel generator. Were you able to do the test that I listed in my previous post? Below are some tips and tricks for diagnosing and repairing your Cummins RV generator. However, it wont tell you outright it thinks the oil is low. Onan is known for its standby generators. I was hoping someone on the forum had seen the problem before. That is 60 decibels of noise or less at a distance of fifty feet. We already mentioned that Onan generators sometimes dont have oil filters. GC2-XHD-UTL Replacement: Is The Interstate GC2-XHD-UTL Good? The best way to maintain that performance is by using genuine parts. Checking inside the housing for rodents and bugs is always a good idea, and you may also want to check that the ground wire is still firmly connected on both ends. This sensor is very difficult to remove and replace due to its location and the fact that it is made with a soft brass housing. The breaker obviously went totally bad when I was dealing with the lack of power so that created the no power at all issue. If this is the case with your model, you can find the meaning of the code your display is showing by heading to this website or checking your Onan RV generator manual. When that happens all it is telling you is that the heat sensor is going bad and you will need to replace it. I takes very little to stop it up. Hey guys. If you have a Cummins Onan RV Generator, you are one lucky camper. Honda EU2000i Oil Type and Capacity: How Much Oil Do I Need? Please review all product specs prior to purchase." For Additional Models - Please Call Us @ 1-800-800-3317 (Note: On the 6-kilowatt and 8-kilowatt Cummins Onan QD generators, the oil is checked via the dipstick near the stop/start switch.) I didn't bypass the solenoid .I pulled the normal signal wire off the solenoid spade and connected momentarily an external battery to the solenoid spade. If the generator is cutting off, check the oil levels. If the connections are good and tight, then check the connections inside the generator, then look at and check the connections at the transfer switch used to switch from shore power to generator power. Next, you need to be aware that the last blinking fault code will continue to blink for a time even after the problem has been corrected. 1-Battery Tender is good. Unfortunately, replacement generators are super expensive. But before I decided to do this myself I checked with a RV dealership and was given a ballpark price of $1000 just for labor. A faulty inverter module is another possibility (expensve! This is because of the safety features built into the RV after youve lost power, even if it was because you disconnected the battery while working on the generator. From what I understand, you were running it while you were out on the road? It will extremely ease you to look guide Onan 7500 Quiet Diesel Generator Manual Troubleshooting as you such as. Onan generators have a number of built-in safety features. When the water pump belt broke, the Onan service center installed the direct drive coupling kit. Copyright 2000-2020 by, ---------- Post added at 12:30 AM ---------- Previous post was at 12:09 AM ----------, ---------- Post added at 12:49 AM ---------- Previous post was at 12:43 AM ----------, ---------- Post added at 01:09 AM ---------- Previous post was at 01:06 AM ----------. That's a new one on me!. Onan Quietdiesel 7500 Caterpillar 3126E"> Allison Transmission 3000 Honda EU2000i 1992 Jeep Wrangler(Towed 4 Down) . Can you post a picture and your complete model and serial number? Know how much power the generator can supply and the load everything youre running in the RV will draw. Code from generator was \"33\". 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. Do I have just a bad CB on the gen or is that a sign of other problems? It also means that an oil leak in the generator can kill it well before the unit suffers damage. For sale used Onan 7.5 Quiet Diesel generator. That would be a big mistake. $. They can self-diagnose issues. JavaScript is disabled. I changed the oil in the generator prior to a cross country trip in January. When the Onan generator starts to get hot, the machine will turn itself off and flash a code that no-one knows anything about unless you go to an Onan-approved mechanic. The breaker on the gen. had two legs one part obviously bad hence my original lack of power to the rear a/c. And it allows you to switch to another fuel source to see if the root cause of it shutting down is a low gas level. I'm assuming there is a bad circuit board and that I'll need to take it to an Onan dealer. Condition: New - Open box. After being parked for the winter, now will not start. Model 7.5HDKAJ11451H S/N G020388776. Hopefully this will solve this issue. I have an onan 7500 quiet diesel generator that cranks but wont start. Do you have to reprime it to restart it? And dont try to turn on too many things at once, since that can cause surges that trip the safety measures like the over-voltage protection. Fortunately, the #33 code seems to be the standard overheat warning for all Onan generators including this model. And consider carrying extra propane tanks in addition to gas cans. Finally, many newer models of Onan diesel RV generators also have fault codes that appear on the display of the unit. All 120v items are working fine with more that one hour of running every appliance simultaneously. That said, purchasing used Onan RV generator parts from eBay is a great way to save some money, making it the ideal solution for those on a budget. They can also be picked up from junkyards where RVs have been discarded. 6.7L Cummins Fuel Filter Water Separator and Oil Filter Set Fit for Dodge Ram 6.7L Cummins Diesel 2013-2018 2500 3500 4500 5500 Replaces# 68197867AA 68157291AA 5083285AA. Onan generators are often powerful. This also means youll get extra mileage out of the generator if you use a good fuel injector cleaner periodically. Now I am not a mechanic, RV tech, or otherwise, but I am a little knowledgeable of how things work and how to do some minor repairs. This unit powered an American Eagle 40 foot RV/bus type. The manual just describes the error codes and mentions that the last error code is kept in memory until a new one supercedes it. Opened it up and found the problem. It will take you to the list of fault codes and have instructions on what they mean and how to fix them. Make sure to try these things before paying a professional, as this could save you quite a bit of money. For example, you may be able to run the air conditioner at full blast and the refrigerator at the same time but not the microwave, too. Thanks for all your responses. The solenoid pulled in the starter contacts and the engine cranked. However, they dont always have excess capacity. Place rag below sensor hole. I took the unit out and have it in my garage. On the other hand, you have to use the right oil and never use old oil to keep the generator from clogging up. They should be able to pinpoint your problem over the phone - maybe. You must log in or register to reply here. This code seems to be missing from the manual as well. Self-diagnostic capabilities simplify troubleshooting. For a better experience, please enable JavaScript in your browser before proceeding. We used the Generator about 75 hours with no issues. Then check the engine oil level and look quickly for anything out of place, such as fuel or coolant leaks. Proper communication is essential when you have a mechanical failure. Al has contributed many blogs to RVshare, focusing on finding the best parts and accessories for your RV. Unfortunately the RV burnt to the ground due to an oil leak in the engine compartment, however the front portion where the generator was housed was not destroyed. These rules may allow you to run your generator later at night in RV parks with noise limits, too, but you should know their rules rather than assuming youre already compliant. If I jumped the solenoid it started righ up. Look for the J Box that connects the generator output to the feed going to the transfer switch. 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. The issue with the circuit breaker was that it would just not reset and actually a couple of times before it took a couple of try's before it would re-set. Onan is relying on network of contracted dealers to provide service for most of their RV generators. See Your Onan Distributor: Cummins Power Generation 1400 73rd Avenue N.E. Only cost $100, much less than I was anticipating. If you are not sure what all the fault codes mean or have lost the owners manual, etc., then click onOnan Generator fault codes. Fixing Onan Generator Fault Code 33 (What Does It Mean? They often sell generators in portable shells that protect them while muffling the sounds it makes. It may not display this or other websites correctly. I have this same Onan generator in my bus. For example, switch to propane if the gas tank is getting low. This allows you to conserve gasoline when youre away from civilization. Older Onan boards allow reset of the alarm functions and a lamp test by pressing the pushbutton on the circuit board. RV Quiet Diesel 7500/8000 GenSet RV GenSet Dramatically Lower Noise, Vibration, Harshness (NVH) Up to 15 dB(A) Quieter Than Other RV Diesel-Powered Generators Load-Matching, Variable Speed Operation Improves Low-Load Quietness . Fixing Onan 7500 Quiet Diesel Generator Fault Code 33. Do your research before you bring in your RV for service. If that is the case, then all you would need to do is add a little more oil to the oil reservoir. Hello, we have an Onan Quiet Diesel 7500 generator in a motorhome. These generators pull fuel from the motorhome tank through a tube. ), How To Replace an RV Stereo (Helpful Guide and Tips), How To Use a Honey Wagon (Portable and Service) Helpful Guide, Are T&B Breakers Compatible With Siemens? It may be bad and if you do not have the right tools to do this, you will need to go to an Onan-approved mechanic to get it checked. May also be under voltage if that happens. I done it completely by myself and although it was a little time consuming (about 5 hours start to finish) I was able to successfully make the repairs and reinstall it back in the RV and fire it right up. Believe it or not, some Onan error code lists skip this number and go from #32 to #35. Running for awhile then shutting off sounds like it could be the fuel filter. Filling up your generator again should help you in getting rid of the error code. I've checked all of the fuses (3-underneath the inspection panel) and fuses at the battery relays. While the Onan RV generators are an industry standard, not all service providers can and will have replacement parts in stock. For example, you can find units that can power one or two air conditioners. That's why while traveling I have decided to dedicate some time to share my experiences with everyone that might be interested in traveling, camping, and RVs. 500 lbs . If the unit is truly overheating, then just shut it down and let the generator cool off for a while. Read the post on this link and see if some of the information is close to what you have. Instead, it flashes codes to indicate the problem. A new year means new ad, DELIVERY ALERT! Please feel free to contact me with any questions. Gather your family and. - Step #1: Overloading the generator - Step #2: Check the state of the air filter - Step #3: Exhaust system - Step #4: Spark plugs - Step #5: Fuel lines and filter Some solutions are very straightforward and fall under user maintenance, but some require specialized tools to diagnose and repair, and attempting them can void your warranty. In the future, top off your RV gas tank so that it never runs low. One of these is the fuel cut-off switch so you dont use all your gas running power though it would leave you stranded on the side of the road. A rattling circuit breaker is not good. Therefore, we recommend that those needing a more affordable solution look for used Onan RV generators for sale. Do you mean the breaker will not stay in the on position or you just do not get a voltage when its reset? Sent all this info Sat. Sometimes your Onan generator may just sputter to halt suddenly, because of the fault code 32. . This unit powered an American Eagle 40 foot RV/bus type. Were the outside temps real high those days? To prevent this from happening, run the generator dry, or you make it a practice to add fuel stabilizer. The model generator you have should have an induction coupling for AC not the brush system. Check the starter solenoid with an ohm meter. If your able to bypass the solenoid and get the engine to crank the issue is with the solenoid or the wires going to it. Some people do confuse the 3 blinking lights as fault code #33. I believe what your talking about trying to say is the fuel solenoid. I'm a 37-years-old author, traveler, writer, blogger, and a camper. Again, look to wiring connections. Very harsh environment under a RV, dirty, dust, salt, water, vibration. ). it has the information you need to make the correct diagnosis. 5 years RV repair and reconstruction, Fleetwood RV Training course completion. RVshare Respectful Community Policy Unfortunately the RV burnt to the ground due to an oil leak in the engine compartment, however the front portion where the generator was housed was not destroyed. Buy It Now. Then you need to move on to the oil and fuel supplies to make sure they are clear and full. I'm thinking you have a loose connection on 1 or more of the screw terminals in that Box.. My generator decided not to crank the starter motor. Minneapolis, MN 55432 763.574.5000 1-800-888-ONAN Fax 763.574.8289 www.onan.com Do not use this genset on a boat. I removed the CB this morning, the toggle on the breaker has no resistance and has something rattling inside so I have ordered a new one, which should be here tomorrow. Wish I had enough picture attachment space left for a sight you do not want to see under the J Box cover. If that doesnt work, there is always a trusted mechanic waiting to help. 2-A bonding/ground strap between the generator frame to the chassis is VERY recommended. on your generator for the group ? Ordered all the thermostat parts from ebay, all OEM Onan parts for about $80, ordered the glow plugs from ebay as well, all OEM Onan plugs as well for what I thought was a WHOPPING price of about $150. While some RV generators will run until the fuel tank has nothing but fumes, the Onan models tend to stop working when youre down to a quarter tank. High temp code, however the coolant was cool as a cucumber when I checked it after several restarts and shutdowns. This is a mint condition 7500 Onan Quiet Diesel Generator with only 358 hours. How many ohms would I expect. 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. . Onan is one of the top selling generator brands in the United States. Nearly all Onan generators also meet the National Park Service sound level requirement. Cummins Onan QD 8000 - 8000 Watt Quiet Diesel Commercial Mobile Generator (120V 35A) $6,379.10. For a better experience, please enable JavaScript in your browser before proceeding. But I'll tell you, if you have a buddy to help hand you tools and such it would of made it a lot easier and you wont be as sore as I was from getting up and down, crawling under and out from underneath getting my own tools. So it didn't take me too long to decide to do some research and tear into it myself. The reason for that omission is that the problem is an uncontrolled shutdown. This unit powered an American Eagle 40 foot RV/bus type. Theyre, Youre likely going to want an RV generator when youre. The driven 12v solenoid wire had vibrated out of its connector crimp. Know the right level of oil, because over-filling will cause the generator to shut off just as too much would. Your RV may be low on gas which would interrupt the fuel supply and again, overheat your generator. Replaced the control board on the generator which wasn't the problem so i ended up replacing the voltage regulator instead and cleaned the carburetor hoping . Other things to try include replacing the spark plugs and filters, running carb cleaner through the system, replacing the voltage regulator slip rings, and checking the circuit breaker on the back of the unit. You need to do the test that I 'll need to do some research tear. 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