Small Engine

Small Engine Troubleshooting Problems? Ask a Mechanic Now.

Ask an Expert,
Get an Answer ASAP!

Hank, I have followed this thread and performed the step you…

Customer Question
Hi Hank, I have followed this...
Hi Hank,
I have followed this thread and performed the step you have suggested and I still get an under voltage alarm the model of my generator is 58731 and the serial is(###) ###-#### Wonder if you have any other steps.ThanksKevin
Submitted: 7 months ago.Category: Small Engine
Show More
Show Less
Ask Your Own Small Engine Question
Answered in 8 hours by:
1/18/2018
Technician: Hank F., Technician replied 7 months ago
Hank F.
Hank F., Technician
Category: Small Engine
Satisfied Customers: 15,997
Experience: Certified on Onan and Generac generators
Verified

Hello, thanks for requesting me.

The first thing I need you to do is to connect a meter to the output of the genset, and get voltage and frequency readings.

How much voltage is showing, and at what frequency?

Ask Your Own Small Engine Question
Customer reply replied 7 months ago
I am going to need some direction on how to do what you are requesting
Technician: Hank F., Technician replied 7 months ago

Connect one meter lead to the input side of one of the main circuit breakers, on either wire 11 or 44.

Connect the other meter lead to the neutral lug.

Set the meter to VAC.

Start the genset.

For the few seconds it will run, note the voltage.

Now switch the meter to read frequency.

Start the genset.

For the few seconds it will run, note the frequency reading.

What voltage and frequency readings do you get?

Ask Your Own Small Engine Question
Customer reply replied 7 months ago
OK I will try that but it won't be till mid next week as I had to go away for a few days
Technician: Hank F., Technician replied 7 months ago

That will be fine.

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 Hank F. Your Own Question
Hank F.
Hank F.
Hank F., Technician
Category: Small Engine
Satisfied Customers: 15,997
15,997 Satisfied Customers
Experience: Certified on Onan and Generac generators

Hank F. 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

15,517 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
I need a starter and a relay switch for my generator.
I need a starter and a relay switch for my generator … read more
Hank F.
Hank F.
Technician
High School or GED
15,997 satisfied customers
I have a generac XG1000E that runs perfectly fine but wont
Hi I have a generac XG1000E that runs perfectly fine but wont produce electricity. I used it recently over the winter with no problems. Very strange … read more
Hank F.
Hank F.
Technician
High School or GED
15,997 satisfied customers
I am calling on behalf of a family. He has a General
Hi my name is Donald JA: I'll do all I can to help. How long have you been dealing with this? Customer: I am calling on behalf of a family JA: Do you plan on doing the work yourself? Customer: He has … read more
Hank F.
Hank F.
Technician
High School or GED
15,997 satisfied customers
I'm troubleshooting a 6kW ecogen generac LP generator with
Hi there - I'm troubleshooting a 6kW ecogen generac LP generator with an UnderVoltage alarm (nexus controller). I'm following the flow chart in the service manual and not having much success yet. Look… read more
Hank F.
Hank F.
Technician
High School or GED
15,997 satisfied customers
Hank I have under voltage issue with my generac 20k
Hello Hank I have under voltage issue with my generac 20k generator. I changed the nexus controller board, I also changed the brushes and it's still giving me under voltage error.… read more
Hank F.
Hank F.
Technician
High School or GED
15,997 satisfied customers
Im in Puerto Rico and have a generac 12kw generator and it
Im in Puerto Rico and have a generac 12kw generator and it just shut down with a low voltage warning. It will crank but it won't start.… read more
Hank F.
Hank F.
Technician
High School or GED
15,997 satisfied customers
Hank / Pearl - down in Tyler, TX. I have a an Onan Marquis
Hello Hank / Pearl - this is Enrique down in Tyler, TX. I have a an Onan Marquis 5500 in an RV that runs for a while then shuts down. The RV is 15 years old and I don't know what, if any, maintenance … read more
Hank F.
Hank F.
Technician
High School or GED
15,997 satisfied customers
My 4000 watt generator all of a sudden quit producing 120
My 4000 watt generator all of a sudden quit producing 120 volts it dropped down to 4.8 volts please advice. Thanks Dave Stephenson, Mi.… read more
Hank F.
Hank F.
Technician
High School or GED
15,997 satisfied customers
I have a Generac GP15000E that will not start. We initially
I have a Generac GP15000E that will not start. We initially thought the SSR was bad because it would energize, but would not release. Then I read somewhere that the Electric Governor Idle Control Boar… read more
Hank F.
Hank F.
Technician
High School or GED
15,997 satisfied customers
Hank, I am having a problem with this 480GN/Q55 5.5kw Generac
Hank, I am having a problem with this 480GN/Q55 5.5kw Generac Gnerator. I am looking for test points to see whats happening with the generator. It has 12v coming into the coil but there is not power a… read more
Hank F.
Hank F.
Technician
High School or GED
15,997 satisfied customers
We have had our Honda 20i invertor generator for 9 years, using
We have had our Honda 20i invertor generator for 9 years, using it intermittently to fire up our motor home air conditioner, mainly. we tried to use it today but the compressor on our 1.5 hp air condi… read more
Hank F.
Hank F.
Technician
High School or GED
15,997 satisfied customers
Hi! I have a 17.5 kW Generac Centurion portable generator
Hi! I have a 17.5 kW Generac Centurion portable generator that I run infrequently. When I went to start it the other day after a long period of sitting up, the battery was dead so I charged the batter… read more
Hank F.
Hank F.
Technician
High School or GED
15,997 satisfied customers
I installed XG7000E. It was tested and worked OK around Feb.
I installed XG7000E. It was tested and worked OK around Feb. 2013. I tried to start it today and failed. As far as I can judge it sounds like there is no gas supply. 1. Gas is fresh. 2. all switches i… read more
Hank F.
Hank F.
Technician
High School or GED
15,997 satisfied customers
Keep getting a "no utility voltage sense" alarm, causing the
Keep getting a "no utility voltage sense" alarm, causing the generator to start when in auto. Measured 240 VAC at the N1/N2 terminals. Why would the "no utility" alarm be active?… read more
Hank F.
Hank F.
Technician
High School or GED
15,997 satisfied customers
Hank, My generator produces when externally excited with
Hank, My generator produces when externally excited with a battery. How much voltage should I see on the DPE winding when running. Do I have to excite the field to see any output from the DPE winding?… read more
Hank F.
Hank F.
Technician
High School or GED
15,997 satisfied customers
My Generac 7000exl Engine(NNN) NNN-NNNNEHF Model GN 410 starts and
My Generac 7000exl Engine(NNN) NNN-NNNNEHF Model GN 410 starts and performs well (240v AC at 3600 rpm with fresh fuel), but not without coughing or stuttering. This occurs with or without load, causin… read more
Hank F.
Hank F.
Technician
High School or GED
15,997 satisfied customers
Hi, I have an Onan Diesel generator in my boat that when started
Hi, I have an Onan Diesel generator in my boat that when started causes a clattering noise near the fuel tank. Was advised that the problem could be with the fuel return line check valve. Noise starts… read more
Hank F.
Hank F.
Technician
High School or GED
15,997 satisfied customers
i have a 2 3 DJA Generator that we purchased in 1965 and another
i have a 2 3 DJA Generator that we purchased in 1965 and another one later. We use them at our ranch in the mountains. We have problems with voltage. One is just over 100 V and the other about 110 V, … read more
ranwell1
ranwell1
CEO
High School or GED
5,039 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