Small Engine

Small Engine Troubleshooting Problems? Ask a Mechanic Now.

Ask an Expert,
Get an Answer ASAP!

mdje onan only puts out 15volts ac help

Customer Question
mdje onan only puts out 15volts ac help
Submitted: 8 years ago.Category: Small Engine
Ask Your Own Small Engine Question
Answered in 4 hours by:
6/26/2010
Technician: Hank F., Technician replied 8 years ago
Hank F.
Hank F., Technician
Category: Small Engine
Satisfied Customers: 15,979
Experience: Certified on Onan and Generac generators
Verified

Hello,

There are 29 different specification levels of the MDJE.

I will need the full model number of your set.

 

Ask Your Own Small Engine Question
Customer reply replied 8 years ago
I flashed the f1 f2 connection with 6volts dc. It started making ac power when I disconnected the 6 volts it lost the voltage. I ordered a new circuit board. Do you agree? The unit is 7.5kw MDJE ONAN
Technician: Hank F., Technician replied 8 years ago

As I stated, there are 29 different specification levels of the MDJE.

I will need the spec number. It is usually part of the full model number, but on older sets is listed separately on the data plate.

 

Ask Your Own Small Engine Question
Customer reply replied 8 years ago
Forget it I gae you all you need to answer the question


Technician: Hank F., Technician replied 8 years ago

No, you did not give me all I needed to answer the question.

There are 29 different specs of this set, and not all of them use the same parts or have the same test procedures.

 

Ask Your Own Small Engine Question
Was this answer helpful?

How JustAnswer works

step-image
Describe your issueThe assistant will guide you
step-image
Chat 1:1 with a technicianLicensed Experts are available 24/7
step-image
100% satisfaction guaranteeGet all the answers you need
Ask Curtis B. Your Own Question
Curtis B.
Curtis B.
Curtis B., Technician
Category: Small Engine
Satisfied Customers: 15,342
15,342 Satisfied Customers
Experience: have worked on and around most engine models for 35 yrs./Polaris ATV expert

Curtis B. is online now

A new question is answered every 9 seconds

How JustAnswer works:

  • Ask an ExpertExperts are full of valuable knowledge and are ready to help with any question. Credentials confirmed by a Fortune 500 verification firm.
  • Get a Professional AnswerVia email, text message, or notification as you wait on our site. Ask follow up questions if you need to.
  • 100% Satisfaction GuaranteeRate the answer you receive.

JustAnswer in the News:

Ask-a-doc Web sites: If you've got a quick question, you can try to get an answer from sites that say they have various specialists on hand to give quick answers... Justanswer.com.
JustAnswer.com...has seen a spike since October in legal questions from readers about layoffs, unemployment and severance.
Web sites like justanswer.com/legal
...leave nothing to chance.
Traffic on JustAnswer rose 14 percent...and had nearly 400,000 page views in 30 days...inquiries related to stress, high blood pressure, drinking and heart pain jumped 33 percent.
Tory Johnson, GMA Workplace Contributor, discusses work-from-home jobs, such as JustAnswer in which verified Experts answer people’s questions.
I will tell you that...the things you have to go through to be an Expert are quite rigorous.

What Customers are Saying:

You did one super job of explaining to me everything there is to know about this fridge. I'm looking forward to asking you questions in the future.

JimmyBagley, IA

Wonderful service, prompt, efficient, and accurate. Couldn't have asked for more. I cannot thank you enough for your help.

Mary C.Freshfield, Liverpool, UK

This expert is wonderful. They truly know what they are talking about, and they actually care about you. They really helped put my nerves at ease. Thank you so much!!!!

AlexLos Angeles, CA

Thank you for all your help. It is nice to know that this service is here for people like myself, who need answers fast and are not sure who to consult.

GPHesperia, CA

I couldn't be more satisfied! This is the site I will always come to when I need a second opinion.

JustinKernersville, NC

Just let me say that this encounter has been entirely professional and most helpful. I liked that I could ask additional questions and get answered in a very short turn around.

EstherWoodstock, NY

Thank you so much for taking your time and knowledge to support my concerns. Not only did you answer my questions, you even took it a step further with replying with more pertinent information I needed to know.

RobinElkton, Maryland

< Previous | Next >

Meet the Experts:

Curtis B.

Curtis B.

Technician

15,342 satisfied customers

have worked on and around most engine models for 35 yrs./Polaris ATV expert

Rick

Rick

Factory Authorized Trainer

4,218 satisfied customers

Outdoor Power Equipment technical trainer since 1990, covering eight states.

Jon K.

Jon K.

Small Engine Diagnostic Expert

2,995 satisfied customers

Gold certified Stihl tech, Service Manager for a rental/repair shop.Certified in most small engines

James W

James W

Small Engine Troubleshooting Expert

2,986 satisfied customers

7 years as Mechanic & Parts Manager for Brother who has Owned Lawn & Garden Repair shop for 35 years

Vince O.

Vince O.

Small Engine Technician

2,927 satisfied customers

Over 30 years experience repairing lawn and garden equipment. Chainsaws, mowers,blowers and trimmers

Wayne

Wayne

Engine Rebuilder

2,041 satisfied customers

many years on egine rebuilding, lawn mower,roto tiller,Truck,and small engines

RUSS

RUSS

SERVICE TECHNICIAN

1,723 satisfied customers

28 YEAR SERVICE TECHNICIAN

< Previous | Next >

Related Small Engine Questions
Have on my boat an onan genser MDJE. I have a problem with
Have on my boat an onan genser MDJE. I have a problem with the raw water pump which shaft broken . The part number of the pump is(###) ###-#### … read more
Hank F.
Hank F.
Technician
15,979 satisfied customers
I've changed the stator, hooked up both sides to the amp
I've changed the stator, hooked up both sides to the amp gauge but I'm still not putting out anything to my battery … read more
Curtis B.
Curtis B.
Technician
Associate Degree
15,342 satisfied customers
I need a fuel pump part numberfor a 7.5 onan MDJE generator.
I need a fuel pump part number(###) ###-####for a 7.5 onan MDJE generator. … read more
Wayne
Wayne
Engine Rebuilder
Vocational, Technical or Trade Scho
2,041 satisfied customers
I have a 1978 Onan 15 kw gas gererator on my boat that runs
I have a 1978 Onan 15 kw gas gererator on my boat that runs very smoothly. When you first start it the voltage output is 120 volts and then after running for approximately 30 minutes the voltage drops… read more
Hank F.
Hank F.
Technician
15,979 satisfied customers
I have a 7kva diesel Onan genset in my boat and I need to
I have a 7kva diesel Onan genset in my boat and I need to remove it. The deck hatch is 600 mm by 500 mm and I have removed the exhaust system and water pumps but I need to remove the generator(alterna… read more
Hank F.
Hank F.
Technician
15,979 satisfied customers
I have a Onan generator Model 4kyfa26100k it is showimg a
I have a Onan generator Model 4kyfa26100k it is showimg a fault code of 27. What do I need to do to check this? … read more
Hank F.
Hank F.
Technician
15,979 satisfied customers
i got a RV LP onan 6500 I cant fix.Cranks and runs
I got a RV LP onan 6500 I can't fix. Cranks and runs great-no ac power out. I have replaced AVR and Starter board,if put battery power to brushes an get 46.3 vac @ 60hz.. I have fixed 6 genset this mo… read more
Expert
Expert
Hi Hank, Can you tell me the hp rating on the Onan MDJE 7.5kw
Hi Hank, Can you tell me the hp rating on the Onan MDJE 7.5kw marine generator? Thanks, Ronnie… read more
Hank F.
Hank F.
Technician
15,979 satisfied customers
how do you remove the rotor so I can replace rear engine oil
how do you remove the rotor so I can replace rear engine oil seal on an onan 8kva diesel MDJE series… read more
Hank F.
Hank F.
Technician
15,979 satisfied customers
Onan MDJE, 7.5 generator. I need a transfer fuel pump, model
Onan MDJE, 7.5 generator. I need a transfer fuel pump, model(NNN) NNN-NNNN These seem to be unavailable. Can I substitute another pump, either mechanical or electrical? If so, who is the maker and wha… read more
Hank F.
Hank F.
Technician
15,979 satisfied customers
I have a 1980 Onan MDJE marine generator. The problem is the
I have a 1980 Onan MDJE marine generator. The problem is the sea water pumps plenty of water but it won't discharge past the exhaust water injection elbow. Thers is no way I could replace the exhaust … read more
Hank F.
Hank F.
Technician
15,979 satisfied customers
Reply to Hanks question on onan mdje-3cr, Tried fuel filters,
Reply to Hanks question on onan mdje-3cr, Tried fuel filters, engine runs if you hold the switch on, let go and engine cuts off. engine puts out elec. when you hold the switch on, #5 terminal in junks… read more
Hank F.
Hank F.
Technician
15,979 satisfied customers
I have a 7.5 KW diesel generator that will crank but does not
I have a 7.5 KW diesel generator that will crank but does not start,but if I force the throttle arm into the solenoid she'll run but will die when let go.… read more
Hank F.
Hank F.
Technician
15,979 satisfied customers
I have a Onan MDJE 7.5 hp marine , it has not run for years
I have a Onan MDJE 7.5 hp marine , it has not run for years I was able to get it to run the voltage was bouning at first but dit go to 120 volts. I ran it for 1.5 hours and a few hours later I went to… read more
Hank F.
Hank F.
Technician
15,979 satisfied customers
I believe I have a problem with the oil pressure gage. I dont
I believe I have a problem with the oil pressure gage. I don't think I am using the correct name for the part its the switch that allows the celonoid from moving to the correct position after starting… read more
Hank F.
Hank F.
Technician
15,979 satisfied customers
I am trying to identify an Onan Marine generator . It was instaled
I am trying to identify an Onan Marine generator . It was instaled in the late 80's , 2 cylnder 6.5 KVA . I canot find any ID plate on it anywhere . There is a manual that was onboard covering 5 model… read more
Hank F.
Hank F.
Technician
15,979 satisfied customers
I have an Miller welder with an onan eng. My battery is not
I have an Miller welder with an onan eng. My battery is not being charged. The system is only putting out 10.4 volts. My question is what should the stater put out and is there a voltage regulator in … read more
Hank F.
Hank F.
Technician
15,979 satisfied customers
I have a 7.5 KW Onan MDJE-3CR/1AA Marine Genset. Recently
I have a 7.5 KW Onan MDJE-3CR/1AA Marine Genset. Recently the low oil shut off has been activating after 10 to 30 minutes of running. The oil pressure guage reads 25 psi upon start up and gradually dr… read more
Hank F.
Hank F.
Technician
15,979 satisfied customers
Disclaimer: Information in questions, answers, and other posts on this site ("Posts") comes from individual users, not JustAnswer; JustAnswer is not responsible for Posts. Posts are for general information, are not intended to substitute for informed professional advice (medical, legal, veterinary, financial, etc.), or to establish a professional-client relationship. The site and services are provided "as is" with no warranty or representations by JustAnswer regarding the qualifications of Experts. To see what credentials have been verified by a third-party service, please click on the "Verified" symbol in some Experts' profiles. JustAnswer is not intended or designed for EMERGENCY questions which should be directed immediately by telephone or in-person to qualified professionals.

Disclaimer: Information in questions, answers, and other posts on this site ("Posts") comes from individual users, not JustAnswer; JustAnswer is not responsible for Posts. Posts are for general information, are not intended to substitute for informed professional advice (medical, legal, veterinary, financial, etc.), or to establish a professional-client relationship. The site and services are provided "as is" with no warranty or representations by JustAnswer regarding the qualifications of Experts. To see what credentials have been verified by a third-party service, please click on the "Verified" symbol in some Experts' profiles. JustAnswer is not intended or designed for EMERGENCY questions which should be directed immediately by telephone or in-person to qualified professionals.

Show MoreShow Less

Ask Your Question

x