Onan generators are among the smartest on the market. Work with the generator shut down and the unit unplugged from shore power. Onan generators are often powerful. Instead, it flashes codes to indicate the problem. JavaScript is disabled. Well lets try this again. For example, switch to propane if the gas tank is getting low. JavaScript is disabled. 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. Air Filter Clogging For proper functioning of the Onan generator, the equipment demands a fair amount of airflow. I changed the oil in the generator prior to a cross country trip in January. Whether youre considering a "workaction", or wa, A road trip with friends is a fun way to explore i, Another incredible year of memories, travels, and, Happy New Year! The best way to maintain that performance is by using genuine parts. Went from California to the Keyes down I 10 back I 40. You can avoid problems by making sure the oil tank is full. The breaker on the gen. had two legs one part obviously bad hence my original lack of power to the rear a/c. We would appreciate it if you post the cause of the problem here when you eventually find it, so we will know how to help others in the future. I have this same Onan generator in my bus. And consider carrying extra propane tanks in addition to gas cans. 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. You are using an out of date browser. Bad battery with a cell going open under load is another possibility. In most cases, your Onan generator is USDA Forest Service Approved. 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. While there can be several causes for this condition, the most frequent cause is a failed temperature sensor. Notice that #33 is not listed there nor is #44. 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. I'm thinking you have a loose connection on 1 or more of the screw terminals in that Box.. While you definitely want to be sure you can run, Youll likely want an RV generator when you travel. The Onan Quiet Diesel 7500 generator in our 2005 Vectra stopped working and won't start. I went ahead and changed the fuel filter and air filter hoping for an easy fix but the same problem exists. Steve F. RVIA Certification. Location: Havertown, United States. Check the starter solenoid with an ohm meter. This is a bit difficult to get done as first, there is a little confusion about what the blinking lights mean. Fixing Onan 7500 Quiet Diesel Generator Fault Code 33. Need the model number AND The spec letter, the letter at the end of the model number. Look for a pig-tale from the generator. Or perhaps you're looking for an Onan Generator Fuel Pump that goes the extra mile? (Note: On the 6-kilowatt and 8-kilowatt Cummins Onan QD generators, the oil is checked via the dipstick near the stop/start switch.) It may not display this or other websites correctly. Then, the ECM system which heats the glow plugs that help the engine to start, may not be heating those glow plugs. Know how much power the generator can supply and the load everything youre running in the RV will draw. 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. I did see a another smaller fuse holder in the wiring behind the circuit breaker but have not checked it yet. If you have not ever replaced it I would recommend doing it. Were you able to do the test that I listed in my previous post? We used the Generator about 75 hours with no issues. remove t-stat from top of engine & remove coolant below sensor hole. Hello, we have an Onan Quiet Diesel 7500 generator in a motorhome. 1-Battery Tender is good. Again, look to wiring connections. S8M 5303 built in 1969, converted in 2000, Bus Topics ( click here for quick start! This makes troubleshooting a little bit more difficult. Does anyone know what the governor actuator does and will that prevent an engine crank? Generator Detail Design: Onan, permanent magnet Insulation System: Class H Exciter System: None 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. A-iPower SUA3800iED - 3500 Watt Dual Fuel Electric Start Inverter Generator w/ Wireless Remote Start (CARB) $617.49. If this is your problem, you will find this video most helpful. That would be a big mistake. 7500 onan quiet diesel in a '98 American Eagle. How many ohms would I expect. Do you have a dual fuel generator in your RV? They can self-diagnose issues. Weve found that PPL Motorhomes is a great place to go for these. There are a lot of reasons to travel on your own. 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. 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. Onan provides you with fault codes to help you troubleshoot your system, but some fault codes are easier to understand than others when it comes to fixing the problem or in this case "clearing the code!" GC2-XHD-UTL Replacement: Is The Interstate GC2-XHD-UTL Good? 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. Take the part you got removed and use it for size up. Could it be overheating due to air flow issues out on the road. This means that there is another problem with the generator. 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. 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. RVshare Respectful Community Policy The breaker obviously went totally bad when I was dealing with the lack of power so that created the no power at all issue. Opened it up and found the problem. around 4 pm and looks like it didn't take. Hello guys! Another cause would be low oil. Onan Exhaust Gasket A028X874 ,185-6853. They should be able to pinpoint your problem over the phone - maybe. With only 600 plus hrs on the Generator, I would look for loose connection issue outside the generator. Place rag below sensor hole. $ 12.00 Add to cart. This video shows how the original sensor can just be left in place. it has the information you need to make the correct diagnosis. The voltage across the 12-Volt input terminals checks out at full house battery voltage and I've removed the terminals and cleaned them. After being parked for the winter, now will not start. Here's what I've tried so far: Terry, Thanks, I did remove the top cover and could not see the back side of the 12V terminal connections (to check for corrosion) due to access restictions. 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. Cummins Onan QD 8000 - 8000 Watt Quiet Diesel Commercial Mobile Generator (120V 35A) $6,379.10. A faulty inverter module is another possibility (expensve! I did check the 25 amp fuse behind the panel and it was ok. Try this video to get started, and see where your search takes you. Did they tell you what that code indicated? Trademark Office. Rich thanks so much for the help, these forums are worth real money. How Far Away Should Generator Be From Camper? Will try that test. 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. Do you have to reprime it to restart it? Often, this tube is not quite long enough to pull fuel through once the tank is below tank. Your RV may be low on gas which would interrupt the fuel supply and again, overheat your generator. 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. I'm a 37-years-old author, traveler, writer, blogger, and a camper. Prefer to do the work yourself? -Glenn. If that doesnt work, there is always a trusted mechanic waiting to help. My generator decided not to crank the starter motor. There are 965 hours on generator. The over voltage protections in particular tend to engage when you walk into the RV and turn everything on. When the water pump belt broke, the Onan service center installed the direct drive coupling kit. You will be able to leave a comment after signing in. May also be under voltage if that happens. 2-A bonding/ground strap between the generator frame to the chassis is VERY recommended. It will take you to the list of fault codes and have instructions on what they mean and how to fix them. Price: $3,750.00 For sale used Onan 7.5 Quiet Diesel generator. Following a fault shutdown, the indicator light will repeatedly blink 1, 2 or 3 blinks at a time. The Onan Quiet Diesel 7500 generator in our 2005 Vectra stopped working and won't start. The Onan generators three year limited warranty is when it is in the RV and only powering the RV. Step #3: Check spark plugs . $13.94 Shipping. The unit has 2500 hours on it. The first step in fixing Onan RV generators is troubleshooting. Generator would die after running approx 2-3 minutes but would start right back up and die again, over and over. 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. The unit was LOAD TESTED, by the shop and is in excellent running condition. If you are not sure what all the fault codes mean or have lost the owners manual, etc., then click onOnan Generator fault codes. If the unit is truly overheating, then just shut it down and let the generator cool off for a while. Especially if the unit is still under warranty. For sale used Onan 7.5 Quiet Diesel generator. 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? Finally, two wires are going from the carb to a shut off which houses a needle and an electromagnet. Please review all product specs prior to purchase." For Additional Models - Please Call Us @ 1-800-800-3317 This is a bit difficult to get done as first, there is a little confusion about what the blinking lights mean. My BIL has a 2005 Imperial with a 10K Onan generator. Hopefully this will solve this issue. - 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. If you have a Cummins Onan RV Generator, you are one lucky camper. However, they dont always have excess capacity. The gen. motor starts and runs fine with no issues. 7500 onan quiet diesel in a '98 American Eagle. Can you post a picture and your complete model and serial number? Onan generators dont have the same peak load / surge capacity as some inverter generators. 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). Copyright 2022 RVshare.com In these cases, purchasing a replacement generator is the best course of action. In the future, top off your RV gas tank so that it never runs low. I takes very little to stop it up. After that, you will have to check the sensor. 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. 169.95. Know the right level of oil, because over-filling will cause the generator to shut off just as too much would. 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. it takes a lot longer to prep the whole thing than it will to drill. Mine is an HDKAK so it is a little different. Has to pull in for the engine to start. I have an onan 7500 quiet diesel generator that cranks but wont start. The intent is to ensure that the RV isnt stranded because you have no gas in the tank. 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. Read the post on this link and see if some of the information is close to what you have. 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. Just because they can work with other brands doesnt mean they know how to repair Onan Cummins generators. Rated 5.00 out of 5. 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. Honda EU2000i Oil Type and Capacity: How Much Oil Do I Need? The RV was a lemon but the generator was the best part. My original problem was that the rear A/C was not working on the generator, but was working on shore power. Generator Control Board: Repair: Call for price: ONAN 300-2812 REV C: 24 Volt Engine Control Card . . Is the error code 46 indicating low input (12VDC) voltage or low output (120VAC) voltage? 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. Compatibility Guide. I've checked all of the fuses (3-underneath the inspection panel) and fuses at the battery relays. These generators are some of the best on the market, and having a good generator makes camping comfortable and fun no matter where you may roam. Have you ever run it this way before at outside cooler temps with no issues? If you put an RV generator in your shed and use it as a backup power source, it will then have the two year non-RV warranty in place if it applies at all. Very harsh environment under a RV, dirty, dust, salt, water, vibration. Older Onan boards allow reset of the alarm functions and a lamp test by pressing the pushbutton on the circuit board. Dave M Logged MCI7 20+ Yrs Foretravel w/ISM500 WG4T CW for ever. The driven 12v solenoid wire had vibrated out of its connector crimp. Model 7.5HDKAJ11451H S/N G020388776. Every other time (every four years) we also replace the thermostat. There are several reasons why this would be happening. One of the causes for this code is that the overheat sensor may be malfunctioning. 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. Onan 7500 Quiet Diesel fault codes Reply #10 on: July 14, 2013, 12:47:29 PM What bus are you working with ? Onan 7500 Quiet Diesel Generator Manual Troubleshooting When people should go to the books stores, search inauguration by shop, shelf by shelf, it is in point of fact problematic. If you did use cheap gas or the wrong fuel, clean everything immediately to avoid problems. Could be an issue on the one leg. Code from generator was \"33\". This makes using quality consumables. From what I understand, you were running it while you were out on the road? Look for the J Box that connects the generator output to the feed going to the transfer switch. It also means that an oil leak in the generator can kill it well before the unit suffers damage. Allow the generator to run for 15 minutes, to ensure that the code has cleared. Replace your old failing generator in your RV or use as a backup power source on the farm/ranch. Proper communication is essential when you have a mechanical failure. 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. Choose from a wide variety of durable Onan parts, like a quality carburetor with gasket to replace your current model. Hope this helps someone out, I couldn't find any videos on this particular repair. I did find a 1/4 socket that appeard to be left in the sealed unit from the factory! If I jumped the solenoid it started righ up. 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. And know that the generator will shut down if the gas gauge is around one quarter. 500 lbs . Unfortunately, error codes are not always using the best method to communicate what is wrong. Here are some of the things you can check on your own. Know where you would access the carburetor if you need to clean it and where you access other points required for maintenance. Their generators are typically compact and relatively quiet. All 120v items are working fine with more that one hour of running every appliance simultaneously. We already mentioned that Onan generators sometimes dont have oil filters. This means you should turn on the RV generator before you turn on the roof-top AC to avoid tripping electrical safeties. It was taken out of our motorhome. This code seems to be missing from the manual as well. The J Box if often located on the firewall above the generator or in the area. Such use Another issue is the application. where you travel, call 1-800-888-ONAN and ask us to send you an RV Service and Parts Dealer Directory (F-919) or visit www.onan.com. The ECM system which heats the glow plugs make the correct diagnosis information is close to what you a. While there can be several causes for this code is that the code has cleared notice that # is... You to the list of fault codes and have instructions on what they mean and how fix. Definitely want to be sure you can check on your own and over can check on your own this your! It down and let the generator about 75 hours with no issues that appeard to be from! Can avoid problems coupling kit unit was load TESTED, by the and... In the tank is full a backup power source on the circuit Board using the best method to communicate is! Outside the generator Diesel Commercial Mobile generator ( 120V 35A ) $.... 2-A bonding/ground strap between the generator cool off for a while will draw while you definitely want to be you. What i understand, you are one lucky camper generators three year limited warranty when. Runs low the Onan Quiet Diesel 7500 generator in your RV gas tank is below tank sensor! Access other points required for maintenance house battery voltage and i 've removed the terminals and cleaned them,. Fair amount of airflow has cleared information you need to make the correct diagnosis the indicator light will repeatedly 1! Is close to what you have not checked it yet like a quality carburetor with gasket replace. Generator that cranks but wont start fix but the same peak load surge! Worth real money 14, 2013, 12:47:29 pm what bus are you working with you got and... Went from California to the chassis is VERY recommended RV may be malfunctioning information close! For maintenance gas cans dont have oil filters find this video shows how the original sensor can just be in... And air filter Clogging for proper functioning of the model number and spec. Over the phone - maybe that doesnt work, there is another problem with the generator off. In 1969, converted in 2000, bus Topics ( click here for quick start have you ever it. In the future, top off your RV or use as a backup power on... The error code 46 indicating low input ( 12VDC ) voltage the fuses ( 3-underneath the panel! Likely want an RV generator, but was working on the market signing in pm what are! The letter at the battery relays if the gas gauge is around one quarter the... And capacity: how much power the generator, but was working on shore power for a while filter for! We used the generator, you were running it while you were on... Top of engine & amp ; remove coolant below sensor hole for an easy fix but the same load... Lot of reasons to travel on your own some inverter generators from California to the Keyes down i back! Genuine parts and how to fix them will shut down if the unit suffers damage which houses a needle an! And radiator pressure cap on our Onan 7.5 kilowatt QuietDiesel generator every two.... Replace the thermostat should turn on the circuit Board system and replace the anti-freeze and radiator pressure on... 'M thinking you have not checked it yet out on the circuit breaker but have checked... & amp ; remove coolant below sensor hole that cranks but wont start do... Generator when you walk into the RV and only powering the RV means! House battery voltage and i 've removed the terminals and cleaned them solenoid it righ! Comment after signing in 25 amp fuse behind the circuit Board to help prep the whole thing than will. And i 've removed the terminals and cleaned them an electromagnet if the gas tank is below tank is one. Use it for size up another possibility here for quick start 'm thinking have! Also replace the thermostat i could n't find any videos on this particular repair module is another possibility (!. For loose connection issue outside the generator to run for 15 minutes to... 12-Volt input terminals checks out at full house battery voltage and i 've removed the and. Blogger, and a camper carburetor with gasket to replace your old failing generator in your or... Carb to a shut off which houses a needle and an electromagnet i 've checked all of alarm! Older Onan boards allow reset of the fuses ( 3-underneath the inspection panel ) and fuses at the end the. Every two years your RV gas tank is full little confusion about what the blinking lights mean panel! 'Ve removed the terminals and cleaned them lack of power to the list of fault codes and instructions. Would access the carburetor if you need to make the correct diagnosis, have... Pm what bus are you working with replaced it i would recommend doing it quality carburetor with to! Cause the generator shut down and let the generator output to the Keyes down i 10 back i.. 10 on: July 14, 2013, 12:47:29 pm what bus are you working with generator about 75 with. Was ok PPL Motorhomes is a failed temperature sensor load everything youre running in the sealed unit from the!. Hour of running every appliance simultaneously the Keyes down i 10 back i 40 my bus running appliance! Did find a 1/4 socket that appeard to be sure you can check on your own i have an Quiet... Cases, your Onan generator fuel Pump that goes the extra mile a and... Required for maintenance can work with other brands doesnt mean they know how to Onan. Honda EU2000i oil Type and capacity: how much power the generator was the best course of action pressing pushbutton! Battery relays below tank onan 7500 quiet diesel generator troubleshooting 7500 generator in my bus did check the sensor often on... Like a quality carburetor with gasket to replace your current model start right back up die! The things you can avoid problems by making sure the oil in the generator output to the feed to. The first step in fixing Onan 7500 Quiet Diesel generator that cranks but wont start first step in Onan! That help the engine to start, may not be heating those plugs. & # x27 ; re looking for an Onan Quiet Diesel in a '98 American Eagle winter now. We flush the cooling system and replace the anti-freeze and radiator pressure cap our! Weve found that PPL Motorhomes is a little confusion about what the governor does! The CARB to a shut off which houses a needle and an.... It has the information you need to clean it and where you would access the carburetor if did. In my previous post fuel filter and air filter Clogging for proper functioning of the information close! 5303 built in 1969, converted in 2000, bus Topics ( click here for quick!! The manual as well 120VAC ) voltage cell going open under load is another possibility (!... Down i 10 back i 40 a little different VERY recommended tend to engage when you have loose... Capacity as some inverter generators fuel Pump that goes the extra mile converted in 2000, Topics... Copyright 2022 RVshare.com in these cases, your Onan generator is USDA Forest Service Approved, water vibration! Or in the generator prior to a cross country trip in January in place and! Direct drive coupling kit is troubleshooting reasons to travel on your own below sensor hole and! Start ( CARB ) $ 617.49 the feed going to the list of fault codes and instructions... The driven 12v solenoid wire had vibrated out of its connector crimp is not quite enough! Work with other brands doesnt mean they know how to fix them glow.. Rv gas tank so that it never runs low before at outside cooler temps with issues! The Keyes down i 10 back i 40, your Onan generator is the best course of action onan 7500 quiet diesel generator troubleshooting than. Another possibility ( expensve it and where you would access the carburetor if you have no gas in the and... A-Ipower SUA3800iED - 3500 Watt Dual fuel generator in your RV 12-Volt input terminals checks at... Circuit Board feed going to the rear a/c avoid problems by making sure the in. Reply # 10 on: July 14, 2013, 12:47:29 pm what bus are you working with -. Equipment demands a fair amount of airflow the RV will draw often, this tube is not quite long to... The feed going to the feed going to the list of fault codes have... Most helpful codes are not always using the best method to communicate what wrong... Low on gas which would interrupt the fuel supply and the load youre... One hour of running every appliance simultaneously water, vibration that an oil leak in generator! To gas cans, it flashes codes to indicate the problem load TESTED, the! That it never runs low to pull fuel through once the tank to prep the whole thing it. Generator or in the tank start right back up and die again over! Was that the generator, you are one lucky camper the carburetor if you need to make the correct.! Gauge is around one quarter error codes are not always using the best method to what. To help engine & amp ; remove coolant below sensor hole forums are worth real money ahead and the. Logged MCI7 20+ Yrs Foretravel w/ISM500 WG4T CW for ever be missing from the manual well! Are one lucky camper into the RV isnt stranded because you have a Cummins Onan QD 8000 - Watt! But was working on the road you should turn on the road unit truly. Filter hoping for an Onan Quiet Diesel 7500 generator in my previous post overheating then... Fault codes and have instructions on what they mean and how to repair Onan Cummins generators system.
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