Glow plug lite

[evope]

L 3010 hst glow plug doesn't cycle anddash lite stays on most of the time

 

[fatjay]

I'd get a multi meter and start at the glow plugs to check voltage and work your way back. I just went through this with mine, ended up being corosion at the first terminal.

 

[North Idaho Wolfman]

Use the WSM to test the Glow plug circuit.
Look at the top right envelope on your screen.