308C Excavator Electrical and Electronic System – Glow Indicator Does Not Illuminate – Troubleshoot

Problem: The glow indicator does not illuminate.

Solution: Check that the following connectors and components are connected properly: starter switch, heater relay, “CONN 4”, “CONN 40” and “CONN 46”. If the problem still exists, use the following procedure to troubleshoot the system.




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Procedure for “Glow Indicator Does Not Illuminate”