250 skid steer, replaced 15amp key switch fuse, turn key on, immediately blows fuse. What do i check next?

Expert's Assistant chatimg
Customer: 250 skid steer, replaced 15amp key switch fuse, turn key on, immediately blows fuse. What do i check next?
Answered by Shane in 41 mins 14 years ago
Auto Mechanic

40 satisfied customers

Specialities include: Auto Body Technician, Heavy Equipment Repairs, Diesel Engine Repairs, Brake and Transmission Repairs

hey thereCustomer


It's very difficult to diagnose electrical problems without a schematic. I get calls for this type of stuff all the time during my busy season.


On a John Deere 250, things that come to mind that are energized with keyed power are the fuel pump and the fuel shutoff solenoid, perhaps something in the dash.


I would unplug the fuel shutoff solenoid, the electric fuel pump at the right rear of the pump, then all the fuses and relays. Put a fresh fuse in the key switch fuse and turn the key on. If the fuse pops, then the problem is either a bad keyswitch or in the wiring going to it.


If the fuse holds, plug fuses back in to their respective sockets one at a time. This may blow the fuse again at any time, but noting which fuse makes it blow helps identify where the trouble my lie.


If you can plug all the fuses back in without blowing the keyed power fuse, then begin plugging in relays, one at a time, in the same manner as the fuses. If plugging in a relay blows the fuse, you can isolate a bad relay by switching them around with the lights or something that is on a switchable circuit.


If you can plug in all relays without blowing a fuse when you turn the key on, then plug in the fuel shutoff, then the fuel pump. If either blows the fuse, then it is either that component has failed or the wiring going to it from the relay is shorted to ground.


These types of tests are very general electrical troubleshooting tasks when you don't have access to schematics, and can be used for all kinds of machines, but it does require that you have some extra fuses on hand.


Sometimes, I need to call my local dealer and get a copy of the schematic faxed to me. Depending on who I talk to and his mood that day, I am sometimes told to buy a manual....=). Not much help.


If you feel that you would rather have an answer from someone who has access to a schematic and can talk you through that way, let me know and someone else may try and help.


If you try any of the tests and get stuck, also let me know with details and I'll assist you further.

thank you for your reply. I hope your information will help resolve the problem.

Hello againCustomer


I had intended that you find the problem before you accepted the answer, but thank you very much!


If you have any problems, reply to this thread and we will get it resolved.

Read less
40 satisfied customers
Auto Mechanic
Auto Mechanic

40 satisfied customers



Licensed mechanics

31,131 satisfied customers

Pearl avatar
Steve Pearl, Mechanic's Assistant
14 Mechanics are online right now.
Related Car Questions
Well I was putting some flood lights on top of my cat 262c
Fire Auto & Equipment Specialist
5 Satisfied Customers
LS: park, it blows the 5amp fuse..replaced the cluster board..diode
Curtis B.
service manager
2,404 Satisfied Customers
260 skid steere, the 15 amp fuse blows every time..yellow wire
Daniel Wilson
Car Specialist
1,315 Satisfied Customers
John Deere 7775 Skid Steere bucket hydraulics wont work
Daniel Wilson
Car Specialist
1,315 Satisfied Customers
I have a John deere 250 skid steer loader that blows the 15 amp fuse
3,308 Satisfied Customers
How it works
logoAsk for help, 24/7
Ask for help, 24/7
Members enjoy round-the-clock access to 12,000+ verified Experts, including doctors, lawyers, tech support, mechanics, vets, home repair pros, more.
logoExpert will respond in minutes
Expert will respond in minutes
After you reach out, we match you with an Expert who specializes in your situation. Talk, text, chat, whichever you prefer.
logoSave time & money
Save time & money
No scheduling hassles, missing time from work, or expensive consults.
A JustAnswer membership can save you significant time and money each month.
Sarahesq and 87 other Automotive Mechanics are ready to help you.
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.
Last Updated: 12-20-22
Why you’ll love JustAnswer
JustAnswer is the best way to get expertise on-demand from doctors, lawyers, vets, mechanics and more. Since 2003, we’ve helped more than 9 million people in 196 countries and have an A+ rating with BBB and a 9.6/10 rating with TrustPilot.
Highly rated, verified Experts
We pride ourselves in our 8-step verification process including license and credential checks. Vetted by us and rated by customers, like you.
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.
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.
I will tell you that...the things you have to go through to be an Expert are quite rigorous.
Web sites like justanswer.com/legal ...leave nothing to chance.
Tory Johnson, GMA Workplace Contributor, discusses work-from-home jobs, such as JustAnswer in which verified Experts answer people’s questions.

JustAnswerHomeAboutCareersPressPartner ProgramBlogCountries
MembersHow it worksLoginRegisterCategories
ExpertsMeet the ExpertsExpert qualityBecome an Expert
SupportHelp CenterContact Us

© 2003-2023 JustAnswer LLC. All rights reserved.

Privacy PolicyTerms of servicesContact usSitemap
DMCA.com Protection Status