New Holland TC35-Glow Plug Light

[Ghost River Retrievers]

Last week my TC35 wouldn't start, so I thought I'd check the battery connections first. When taking off the first side, my wrench slipped and hit both terminals ... small spark ... I cleaned the connections and tightened them. I went to try to start it and got nothing ... dead as dead can be ... not even the glow plug light came on. I think this is important ... I had left the key in the "on" position, so the battery arc'd with the key in the "on" position.
I tested the battery and it showed "0.0."
I got a new battery and installed it this morning. The instant that I connected the second cable, the glow plug light came on. When I went to start it, I found that the key was in the "off" position. Nonetheless, I turned the key to "on" and waited for the glow plug light to go off ... it never did. After about 3 - 4 minutes, I went ahead and tried starting the tractor and it cranked up right away. I ran it for a couple minutes and the glow plug light NEVER went off. I turned off the tractor and the glow plug light remained on. I removed the key and the glow plug light remained on.
I removed the positive battery cable so the glow plug light would go off, which it did.
Why is the glow plug light remaining on?
What do I need to check?
Thanks for reading and for any suggestions!!!
Ghost River Retrievers

 

[CloverKnollFarms]

Is there perhaps a relay in the system somewhere that got damaged during the arc?

Glow Plug Relay Control Unit SBA385870500 for New Holland TC35 TC35D TC45 TC40 | eBay

New Holland TC35 TC35D TC45 TC40. Condition: 100% new. We wish you could be more patience. Application(just for reference).

www.ebay.com

 

[thclimer]

Yes, I would be checking the glow plug relay, see attached.

 

[Ghost River Retrievers]

Thanks for the info! I'll let you know what I find out.

 

[Hughman]

My TC had a problem where the glow plug light stayed on. It was the timer relay. The New Holland part is very expensive but you can get a generic relay for much less.

 

[Ghost River Retrievers]

I've ordered the "el-cheapo" relay... I'm crossing my fingers that it will fix the problem.
Thanks for the help!

 

[Ghost River Retrievers]

TBN does it again!
The generic $18 Glow Plug LampTimer Relay fixed the problem!
Thanks to the responders!!!

Ghost River Retrievers

 

[Mud2Money]

Does anyone know if the glow plugs are supposed to come on every time or only for cold ? My ls once over a certain temp won’t , same as my trucks. My tc45 always comes on every time I hit the key. Wiring has been molested on this unit before I got it.

 

[thclimer]

TBN does it again!
The generic $18 Glow Plug LampTimer Relay fixed the problem!
Thanks to the responders!!!

Ghost River Retrievers

Good news!

Can you provide a link for the one you purchased?

 

[Ghost River Retrievers]

Amazon.com

12V Timer Relay for Kubota 15694-65992 15694-65990 S81NL SBA385870500 Lamp Timer Glow Plug Relay​

Brand: Eeyhooer

$18.00

 

[WM75Guy]

Does anyone know if the glow plugs are supposed to come on every time or only for cold ? My ls once over a certain temp won’t , same as my trucks. My tc45 always comes on every time I hit the key. Wiring has been molested on this unit before I got it.

Mine comes on every time I turn the key, regardless of temp. I just wait for the light to go out and it starts right up.

 

[Ghost River Retrievers]

Mine comes on every time I turn the key, regardless of temp. I just wait for the light to go out and it starts right up.

Yes, same with mine.
(And now that I have replaced the relay, it even goes off when it's supposed to!)

 

[Mud2Money]

Thank you guys ! Mine had a aftermarket cab added on. Every now and then when I turn the key on the turn signals light up. Thought I got all the wiring cleaned up and sorted but still some minor problems.

 

[nyone]

Fyi the glow plug light dosnt need to work/cycle for the glow plugs to actualy work. I fixed my system and a few months later the light quit even though the glow plugs still work.

 

[Williy]

As soon as you turn on the key the glow plug light should be on unless you have a problem

common cents we have a new leader

willy