ASV RC30 glow plug issues

Discussion in 'Mechanic and Repair' started by swanny, Oct 27, 2009.

  1. swanny

    swanny LawnSite Senior Member
    Messages: 662

    Our 2006 unit is frying the glow plug relay for some reason. 50 amp fuse is fine. I pop in a new relay and test the lead wire before attaching it to the glow plug bus and it has power, then attach the wire and turn the key to will fry the relay every time...resulting in no power to the lead.

    Glow plugs work fine when I hook them up directly to the battery.

    Any ideas? Our service manual doesn't have much about this. Thanks!
  2. DiyDave

    DiyDave LawnSite Bronze Member
    Messages: 1,695

    Check resistance on the wires, 1 at a time, going from the relay to the glow plugs, could be some greened out copper, somewhere. You may also want to check the glow plugs' resistance, and connections. A loose connection will add a lot of resistance. My $.02

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