Please feel free to contact me with any questions. If you take it out of the RV and use it to provide backup power for your home, the warranty is two years at most. Replace your old failing generator in your RV or use as a backup power source on the farm/ranch. A faulty inverter module is another possibility (expensve! It will take you to the list of fault codes and have instructions on what they mean and how to fix them. This unit powered an American Eagle 40 foot RV/bus type. Proper communication is essential when you have a mechanical failure. You are using an out of date browser. My generator unfortunately does not slide out on a tray so I had to get a little creative and remove from the bottom because the entire top panel has to come off the unit. Mod: 7.5HDKAJ11451F S/N: K990 017304 in 2000 Beaver motorhome I recently had ans issue where it wouldn't crank at all so I took the front cover off and noticed a broken wire. Air Filter Clogging For proper functioning of the Onan generator, the equipment demands a fair amount of airflow. All 120v items are working fine with more that one hour of running every appliance simultaneously. If the latter, then there is a problem with the generator part of the unit. Do you have a dual fuel generator in your RV? Your RV may be low on gas which would interrupt the fuel supply and again, overheat your generator. 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. If you have a Cummins Onan RV Generator, you are one lucky camper. SMOKSTAK is a Registered Trade Mark in the U.S. 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. Sent all this info Sat. Very harsh environment under a RV, dirty, dust, salt, water, vibration. Opened it up and found the problem. This is why we present the ebook compilations in this website. Rated 5.00 out of 5. Therefore, while many people prefer to visit Cummins-specific repair shops, others claim to have more budget-friendly repairs made at such places as lawn mower repair shops. With a bit of digging, you should be able to find a decent deal, so you can fully enjoy camping once again. YouTube is an excellent resource for learning how to make more complex repairs. On the other hand, you have to use the right oil and never use old oil to keep the generator from clogging up. There is a small fuse under the circuit breaker panel that protects the DC field circuit and the rectifier circuit for the voltage regulator circuit. 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. My BIL has a 2005 Imperial with a 10K Onan generator. If that is the case, then all you would need to do is add a little more oil to the oil reservoir. Need the model number AND The spec letter, the letter at the end of the model number. Onan generators for RVs have a low oil shutoff that could be causing problems. The first step in fixing Onan RV generators is troubleshooting. I can't imagine it only happening to our Vectra. 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. Here's the general procedure for. $ 12.00 Add to cart. If you did use cheap gas or the wrong fuel, clean everything immediately to avoid problems. It displays an error code 46 which the manual says is low voltage. You will find that if you stick your finger in the coolant that it may be barely warm. Another cause would be low oil. Finally, many newer models of Onan diesel RV generators also have fault codes that appear on the display of the unit. Self-diagnostic capabilities simplify troubleshooting. Believe it or not, some Onan error code lists skip this number and go from #32 to #35. Onan Exhaust Gasket A028X874 ,185-6853. 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. "A Community of Antique Engine Enthusiasts." Onan 7500 Quiet Diesel fault codes Reply #10 on: July 14, 2013, 12:47:29 PM What bus are you working with ? Wish I had enough picture attachment space left for a sight you do not want to see under the J Box cover. Does anyone know what the governor actuator does and will that prevent an engine crank? It also means that an oil leak in the generator can kill it well before the unit suffers damage. Three-point, fully focalized mounting system reduces vibration. I went ahead and changed the fuel filter and air filter hoping for an easy fix but the same problem exists. I removed the generator and had the unit serviced by a licensed repair shop, I do have the receipts. Onan is known for its standby generators. 7500 onan quiet diesel in a '98 American Eagle. Always know where the circuit breakers and other electrical panels are so that you can reset or repair things as necessary. JavaScript is disabled. Know the right level of oil, because over-filling will cause the generator to shut off just as too much would. Hey guys. Onan generators are among the smartest on the market. Other places to look include Craigslist and your local Facebook Marketplace, both of which occasionally have Onan RV generators for sale. Another issue is the application. 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. 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. 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 . 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. 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. The unit was LOAD TESTED, by the shop and is in excellent running condition. This makes troubleshooting a little bit more difficult. hdkaj 11451d with only 610 hours. Have you ever run it this way before at outside cooler temps with no issues? Their generators are typically compact and relatively quiet. Older Onan boards allow reset of the alarm functions and a lamp test by pressing the pushbutton on the circuit board. Code from generator was \"33\". This means that you may have to search for the Onan part number in the Cummins inventory listed on a website. Once it starts to take place, it can weld the sensor to the engine making it extremely difficult to remove. Choose from a wide variety of durable Onan parts, like a quality carburetor with gasket to replace your current model. All this code means is that there is an overheating problem with your generator. For example, switch to propane if the gas tank is getting low. Dave M Logged MCI7 20+ Yrs Foretravel w/ISM500 WG4T CW for ever. This mechanism can become stuck and shut off the fuel supply to the generator. http://community.fmca.com/topic/5332-onan-10hdkag-61731x-generator-has-low-voltage/. Gunny is correct. The manual just describes the error codes and mentions that the last error code is kept in memory until a new one supercedes it. These generators pull fuel from the motorhome tank through a tube. 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. 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. 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? The Onan Quiet Diesel 7500 generator in our 2005 Vectra stopped working and won't start. 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. I have owned the unit for 18 months and have been religious about exercising the gen. because it only had 400 hours on it when I bought the Eagle. Such use 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. It may not display this or other websites correctly. The J Box if often located on the firewall above the generator or in the area. Prefer to do the work yourself? This means that there is another problem with the generator. It will extremely ease you to look guide Onan 7500 Quiet Diesel Generator Manual Troubleshooting as you such as. The RV was a lemon but the generator was the best part. The over voltage protections in particular tend to engage when you walk into the RV and turn everything on. Also, the message wont be received when the code is missing from the error code lists. The first piece of advice that should be given to every Onan owner is that you need to make sure to remove all loads before shutting the generator down. The model generator you have should have an induction coupling for AC not the brush system. And verify that the RV shop is experienced working with Onan Cummins generators. These parts are designed and engineered specifically for your Onan generator to perform at its peak, and are backed by the Onan parts warranty. Fuel Per Hour: How Much Gas Does an Onan 5500 Generator Use? Generator Detail Design: Onan, permanent magnet Insulation System: Class H Exciter System: None They can self-diagnose issues. I'm thinking you have a loose connection on 1 or more of the screw terminals in that Box.. May also be under voltage if that happens. Buy It Now. Those solenoids are very rugged and reliable, rarely fail. If you are not sure what all the fault codes mean or have lost the owners manual, etc., then click onOnan Generator fault codes. Do you need extra air conditioning in your RV to stay comfortable? For example, you can find units that can power one or two air conditioners. We already mentioned that Onan generators sometimes dont have oil filters. However, those are not always easy to replace and can be expensive. 7500 Onan Quiet Diesel Temp sensor, thermostat, glow plug, replace/repair jeffbond001 28 subscribers Subscribe 17K views 2 years ago This is my 2004 38N Fleetwood Bounder with quiet. Is the error code 46 indicating low input (12VDC) voltage or low output (120VAC) voltage? Your batteries are most likely having trouble trying to kick start the generator. 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. Fixing Onan Generator Fault Code 33 (What Does It Mean? 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. Did they tell you what that code indicated? The error code usually refers to either one of these things. You will be able to leave a comment after signing in. Step #3: Check spark plugs . Has to pull in for the engine to start. This unit powered an American Eagle 40 foot RV/bus type. From the Onan Operator's Manual: First-Level Fault Codes: The genset controller provides extensive diagnostics by causing the status indicator light on the Control Switch to blink in a coded fashion. Or as we just explained, the device monitoring the fuel supply to the generator could be malfunctioning and shutting that supply off. Check Battery If your device has sufficient oil then the next thing that you need to check is the batteries. Instead, it flashes codes to indicate the problem. If that doesnt work, there is always a trusted mechanic waiting to help. Make sure all of your connections are clean. The solenoid pulled in the starter contacts and the engine cranked. Model 7.5HDKAJ11451H S/N G020388776. 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. If filling your tank doesnt help, be sure to check your generators oil level. And know that the generator will shut down if the gas gauge is around one quarter. Onan 7500 Generator in my motorhome was shutting down about every minute or so and showing a fault code of 1 blink indicating an over temperature condition. 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. Mine is an HDKAK so it is a little different. How many spade terminals do you have on your solenoid? For example, issues that make a generator run rough could be deal with temporarily, but the long-term damage will destroy the generator. Again, look to wiring connections. Onan is one of the top selling generator brands in the United States. In the future, top off your RV gas tank so that it never runs low. We flush the cooling system and replace the anti-freeze and radiator pressure cap on our Onan 7.5 kilowatt QuietDiesel generator every two years. 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