Glow plug indicator light

[Frank Petrisko]

Hi........hope someone call solve this. My L4200 Kubota glow plug dash indicator light takes a long time to go out and repeatedly comes back on when operating.
I spoke with a Kubota mechanic and he told me to replace the relay, so we did but the problem persists. Any one have an alternate suggestion??
Thanks, Frank

 

[KennyV]

Hello Frank...
The Glow Plug relay will almost Never fail...
Your problem is quite common, it is the glow plug controller ... it is what turns the relay on... there is a little diode in it that has failed... Long ago I was going to rebuild one, never got to it...
It's an easy fix, the controller is located with the relay the only bad thing about it is the price... about $75. 00.
If you have trouble finding it... some time back, a few years anyway... I posted a schematic and location diagram,... If you need them I'll locate them again... KennyV
See post #6 in this thread... : http://www.tractorbynet.com/forums/kubota-owning-operating/134518-glow-plug-wiring-help-needed.html
It has the schematic of the system.... KennyV

BTW... Welcome to TBN... Love my L4200!!!