JD 6420 electrical problems

/ JD 6420 electrical problems #1  

JD 6420

New member
Joined
May 18, 2017
Messages
1
Location
Lithuania
Tractor
John deere 6420
To begin with we had bought Jd 6420 European edition we bought it in an auction, we had started it but we have some electrical issues with it. As you turn the ignition dash indicates problems with fueal filter water sensor , engine temprature is too high ,transmission/hydraulic oil pressure is too low,and battery indicator light flashes too. After you start the engine there remains just three main warning indicator lights and the fuel water sensor light.
Also you can`t get more RPM than 1500.

And now the most interesting part when you turn your hazard lights on all warning lights go off rpm is no longer limited and everything seems fine. So can anybody tell me what is wrong with it ??? I chhaneged realays and fuses because some of hem were bad and I don`t know where to look next . Sorry for bad English :/
 
/ JD 6420 electrical problems #2  
Check if everything is grounded as it should, check all connectors that goes to the cab.
 

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