Fixing Onan 7500 Quiet Diesel Generator Fault Code 33. 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. First, that is not a governor actuator, it is a fuel shut off solenoid. Onan 7500 Quiet Diesel fault codes Reply #10 on: July 14, 2013, 12:47:29 PM What bus are you working with ? Then while the gen. was running I turned the 35amp circuit breaker at the gen. off and now it will not reset! The units that do this are the ones drawing from the gas tank. Is the error code 46 indicating low input (12VDC) voltage or low output (120VAC) voltage? Do I have just a bad CB on the gen or is that a sign of other problems? Gunny is correct. 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. (Note: On the 6-kilowatt and 8-kilowatt Cummins Onan QD generators, the oil is checked via the dipstick near the stop/start switch.) 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 ----------. The breaker obviously went totally bad when I was dealing with the lack of power so that created the no power at all issue. Luckily, most Onan RV generator issues can be resolved, and some of these problems are simple enough that the average handyman can fix them. 7500 onan quiet diesel in a '98 American Eagle. Model 7.5HDKAJ11451H S/N G020388776. Unfortunately, error codes are not always using the best method to communicate what is wrong. For example, you can find units that can power one or two air conditioners. Code from generator was \"33\". Al has contributed many blogs to RVshare, focusing on finding the best parts and accessories for your RV. Were you able to do the test that I listed in my previous post? The voltage across the 12-Volt input terminals checks out at full house battery voltage and I've removed the terminals and cleaned them. Wish I had enough picture attachment space left for a sight you do not want to see under the J Box cover. For a better experience, please enable JavaScript in your browser before proceeding. The reason for that omission is that the problem is an uncontrolled shutdown. These parts are designed and engineered specifically for your Onan generator to perform at its peak, and are backed by the Onan parts warranty. You will find that if you stick your finger in the coolant that it may be barely warm. 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. It will take you to the list of fault codes and have instructions on what they mean and how to fix them. I suggest you call Onan (Cummins) tomorrow and talk to their tech people. 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. I did check the 25 amp fuse behind the panel and it was ok. Know how to sustain, maintain and repair common issues with the generator to minimize trips to the mechanic and maximize the running life of the most important equipment in the RV aside from the car motor. Finally, two wires are going from the carb to a shut off which houses a needle and an electromagnet. So it didn't take me too long to decide to do some research and tear into it myself. Then you need to move on to the oil and fuel supplies to make sure they are clear and full. The generator is a 7500 quiet diesel model no. Once it starts to take place, it can weld the sensor to the engine making it extremely difficult to remove. two people - 1 to run the drill & 1 to run right angle head through sensor mounting hole. Look for the J Box that connects the generator output to the feed going to the transfer switch. Onan is known for its standby generators. How many ohms would I expect. 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). If you have not ever replaced it I would recommend doing it. "A Community of Antique Engine Enthusiasts." With a bit of digging, you should be able to find a decent deal, so you can fully enjoy camping once again. Sounds like a poor ground connection somewhere. around 4 pm and looks like it didn't take. My BIL has a 2005 Imperial with a 10K Onan generator. 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. $13.94 Shipping. -Glenn. 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. That shut down occurs when the generator is overheating. 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. 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. 169.95. The major problem with replacing the heat sensor is corrosion. You will be able to leave a comment after signing in. SMOKSTAK is a Registered Trade Mark in the U.S. Check the starter solenoid with an ohm meter. Therefore, we recommend that those needing a more affordable solution look for used Onan RV generators for sale. Place rag below sensor hole. 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. It's a 7.5hdkaj11451g. There are 965 hours on generator. Onan 7500 Diesel problem. They can also be picked up from junkyards where RVs have been discarded. Replace your old failing generator in your RV or use as a backup power source on the farm/ranch. Mine is an HDKAK so it is a little different. I have a Holiday rambler with a quiet 7500 Onan diesel generator while it was running I closed the Generator hatch into the coach and the generator stopped running. As for as the original problem of missing power on one leg you mention brushes wearing out, is this something that I can inspect/check on my own or will it require dealer service? I changed the oil in the generator prior to a cross country trip in January. However, the brand has been picked up by Cummins. Privacy Policy I tested the input at the automatic transfer switch and found power coming in on leg 2 but not leg 1 with gen. running. All this code means is that there is an overheating problem with your generator. -Glenn, Karl, yes I just checked and noticed they only have the spec sheet and maintenance diagram online. Prefer to do the work yourself? (Safety Guide). 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. Here are our top 13 tips for getting the most of out your Onan generator troubleshooting fixed. 2. Of course, if youre going to fix the Onan generator in your RV on you own, youll need to find the right parts to do so. Digital Accessibility at RVshare. Such use It is a simple way to communicate with the owner of the generator. See Your Onan Distributor: Cummins Power Generation 1400 73rd Avenue N.E. This also means youll get extra mileage out of the generator if you use a good fuel injector cleaner periodically. Do not use this link to ask for help with RV-related issues; Ask those questions in one of our forums. 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. YouTube is an excellent resource for learning how to make more complex repairs. When the water pump belt broke, the Onan service center installed the direct drive coupling kit. After that, you will have to check the sensor. Hamiltonbobs Premium Quality Oil Pan Gasket Made for IH International. The driven 12v solenoid wire had vibrated out of its connector crimp. Allow the generator to run for 15 minutes, to ensure that the code has cleared. Air Filter Clogging For proper functioning of the Onan generator, the equipment demands a fair amount of airflow. The odds are high that your RV generator is an Onan Cummins or original Onan model. These generators pull fuel from the motorhome tank through a tube. 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. This is a bit difficult to get done as first, there is a little confusion about what the blinking lights mean. If it looks contaminated, it is most likely that the oil quality is the reason behind the Onan generator won't start. Rich thanks so much for the help, these forums are worth real money. Has to pull in for the engine to start. I've checked all of the fuses (3-underneath the inspection panel) and fuses at the battery relays. The manual says low input voltage (12VDC), Genset doesn't crank, will not turnover - completely silent when I try to start it. Begin by checking the fuel level. Know the right level of oil, because over-filling will cause the generator to shut off just as too much would. I installed a new breaker this morning and what do you know we have power! Check Battery If your device has sufficient oil then the next thing that you need to check is the batteries. An Onan Marquis Gold RV Generators which can run two air conditioners with energy to spare, self-diagnostics capability and an easy install. Unit new is over 8k, get this unit for under 4K, save a ton. Gather your family and. Also, the message wont be received when the code is missing from the error code lists. 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 . $. There are several pages of secondary fault codes listed. That seems to be normal for Onan generators. We used the Generator about 75 hours with no issues. Do you need extra air conditioning in your RV to stay comfortable? Often, this tube is not quite long enough to pull fuel through once the tank is below tank. Here is Our View. 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. 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. For example, switch to propane if the gas tank is getting low. Onan generators are often powerful. I enjoy life as much as I can and love to visit beautiful places in my RV. For example, it is common to see a three year or 2000 hour warranty on an Onan generator. ), http://www.rv.net/forum/index.cfm/fuseaction/thread/tid/26249506/gotomsg/26250404.cfm, Quote from: sunlovers on July 14, 2013, 09:17:35 AM, Quote from: Charles in SC on July 16, 2013, 05:22:14 PM, SimplePortal 2.3.7 2008-2023, SimplePortal. Flashing code 29 after mobile repair tech saturated it with batterie charger hooked up to terminals on back of generatot . Does anyone know what the governor actuator does and will that prevent an engine crank? Fortunately, the #33 code seems to . If none of the above solutions work and you arent great at DIY projects, it might be time to seek out a repair person. 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. Another issue is the application. I've checked all of the fuses (3-underneath the inspection panel) and fuses at the battery relays. This is why we present the ebook compilations in this website. The starter solenoid has 2 big battery lugs and one spade terminal for solenoid. On the other hand, you have to use the right oil and never use old oil to keep the generator from clogging up. I also have this generator, it has been fault free for over 2100 Hrs., lesson learned, ALWAYS remove all loads BEFORE shutting the gen. off, it gets really expensive when you blow the built in inverter.>>>Dan, We need the secondary fault codes. 2-A bonding/ground strap between the generator frame to the chassis is VERY recommended. Compatibility Guide. Then you can go to www.cumminsonan.com and look up the error codes. Could you post the Model number and the number of Hrs. Need the model number AND The spec letter, the letter at the end of the model number. Fixing Onan Generator Fault Code 33 (What Does It Mean? Notice that #33 is not listed there nor is #44. 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. Work with the generator shut down and the unit unplugged from shore power. From what I understand, you were running it while you were out on the road? However, they dont always have excess capacity. Well pulled the dam thing out of the motorhome. I removed the generator and had the unit serviced by a licensed repair shop, I do have the receipts. There are a lot of reasons to travel on your own. To prevent this from happening, run the generator dry, or you make it a practice to add fuel stabilizer. S8M 5303 built in 1969, converted in 2000, Bus Topics ( click here for quick start! Central Virginia gumpy Some Assembly Required Hero Member A new year means new ad, DELIVERY ALERT! Hope this helps someone out, I couldn't find any videos on this particular repair. Onan is relying on network of contracted dealers to provide service for most of their RV generators. Step #3: Check spark plugs . Trademark Office. If it is, then you may have a hard time replacing it as corrosion is known to freeze the sensor in place and you may have to remove the engine head to get to it. First, that is not a governor actuator, it is a fuel shut off solenoid. In most cases, your Onan generator is USDA Forest Service Approved. $ 12.00 Add to cart. Or perhaps you're looking for an Onan Generator Fuel Pump that goes the extra mile? Hello, we have an Onan Quiet Diesel 7500 generator in a motorhome. ONAN 300-1540: Power Regulator Board: Repair . If the code still exists, the generator may be in need of further repair. Blink and pause. After than it is a bunch of wires leading into the electrical panel, everything I could get to easily checked out. $6,436.95. . Onan generators have a number of built-in safety features. Do you have a dual fuel generator in your RV? So after some research I determined it was the coolant sensor was bad. Dave M Logged MCI7 20+ Yrs Foretravel w/ISM500 WG4T CW for ever. The 7500 Quiet Diesel generator uses an Inverter/Control Board that monitors almost all your generator electronics. To learn more about this code, what it means and how to fix it just continue to read our article. This video shows how the original sensor can just be left in place. 300-5332 and Cummins Hour Meter Onan onan generator parts 7500 Remote Switch Cummins Onan (300-5332 Remote Switch and Hour Meter Product Description & Features: Cummins SWITCH and HOURMETER - For use with gasoline and LPG generators Features View More Parts YTX9-BS Battery Replacement for PTX9BS Predator Generator (8750 watt) You can avoid problems by making sure the oil tank is full. now I get 3 blinks on the switch ca . Condition: New - Open box. May also be under voltage if that happens. I did see a another smaller fuse holder in the wiring behind the circuit breaker but have not checked it yet. Why yes, Mr. Forest Ranger, we are allowed to run the generator in our RV while were parked in sensitive national parks, because we know it cant accidentally spark a wildfire. remove t-stat from top of engine & remove coolant below sensor hole. Other advice would be to place your Onan owners manual in a safe place, a spot you wont forget about, and refer to that first. 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. Just because they can work with other brands doesnt mean they know how to repair Onan Cummins generators. After being parked for the winter, now will not start. If the generator is cutting off, check the oil levels. Quick replacement of my 7.5K diesel genset glow plugs.Glow plugs I used from eBay.http://www.ebay.com/itm/321525063720?_trksid=p2057872.m2749.l2649&ssPageN. If your generator is built into your RV, there is usually a fuel supply line to help run the unit. My original problem was that the rear A/C was not working on the generator, but was working on shore power. This kit contains all Fleetguard OEM required hard parts to perform generator maintenance for Quiet Diesel 7500 Auxiliary Power Unit Generator AF27906 (1) Fleetguard Air Filter, Replaces Cummins Onan 140-2897 / LF3591 (1) Fleetguard Lube Spin-On, Replaces Cummins Onan 122-0833 / FF236 (1) Fleetguard Fuel Filter, Replaces Cummins Onan 149-2513 NEW Replacement 12V/24V Engine Control Monitor for ONAN 300-0681, 300-0682. Or as we just explained, the device monitoring the fuel supply to the generator could be malfunctioning and shutting that supply off. The error code usually refers to either one of these things. This allows you to conserve gasoline when youre away from civilization. Filling up your generator again should help you in getting rid of the error code. I have this same Onan generator in my bus. The first step in fixing Onan RV generators is troubleshooting.

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