Error Code 57 with JD 3720

[jloven]

I have a 2008 JD 3720 and have been getting the Error Code 57 for a couple of months now. It is random and doesn't seem to effect the operation of the tractor, at least until this week. Yesterday I tried to start when it was really cold. Plugged the heater in for a couple of hours and let the glow plugs light for several minutes but the glow plug light on the dash never went out. Tractor would not start. Thought the battery might be too weak to heat the plugs so we connected the battery with jumper cables to another source. Still would not start since the glow light went out. We finally wiggled a few of the fuses in the fuse box and immediately the glow plug went out and the error code 57 showed up but the tractor started and worked fine. Now today I have the same issue.
First, how do I correct the error code 57? Since its out of warranty, if its just a part I have a mechanic friend that can replace it without getting JD assistance. Would this be giving me issues with the starting sequence?

 

[JD5210]

Here is an online link to the operators manual. Error codes are in the manual error code 57 is No response from HST controller.

When you say it will not start what does that mean? Starter will not turn over, starter turns over, but will not start. Try pushing the hst pedals back and forth and make sure they are centered. I would call your JD dealer and see what they say as well. Hopefully they will help you even though it is out of warranty.

OMLVU19809_L8