Feb 1, 2019 / 4720 Glow Plug Indicator Display Light Doesn't Work #1 J jcalla Silver Member Joined May 25, 2010 Messages 112 Location Triangle, VA Tractor 4720, 455 Preheater works but indicator light doesn't. Last six S#770631. Any ideas?
Feb 1, 2019 / 4720 Glow Plug Indicator Display Light Doesn't Work #2 B beenthere Super Star Member Joined Aug 16, 2001 Messages 18,513 Location Southern Wisconsin, USA Tractor JD_4x2_Gator, JD_4300, JD_425, JD_455 AWS, added JD_455, JD_110, JD_X485(sold) Why start a new thread when this seems related to the other thread on this problem? https://www.tractorbynet.com/forums/john-deere-owning-operating/407882-tm2370cd-serial-770631-a.html Maybe check some voltages against the electrical diagrams furnished would help to see if a bulb (?) is burned out on the circuit board or not getting energized?
Why start a new thread when this seems related to the other thread on this problem? https://www.tractorbynet.com/forums/john-deere-owning-operating/407882-tm2370cd-serial-770631-a.html Maybe check some voltages against the electrical diagrams furnished would help to see if a bulb (?) is burned out on the circuit board or not getting energized?
Feb 1, 2019 / 4720 Glow Plug Indicator Display Light Doesn't Work Thread Starter #3 OP J jcalla Silver Member Joined May 25, 2010 Messages 112 Location Triangle, VA Tractor 4720, 455 Bulb is fine. Lights up when you turn the key on.