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Electric Yamaha Electric Yamaha Golf Cars; G1 through "The Drive" and U-Max Utility Vehicles



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Old 09-13-2018, 06:43 PM   #1
webn237
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Default G29 problem

Hey guys. Need some help. My buddy has an electric g29. The controller and f/r switch went bad. We put an upgraded controller in it (alltrax 400) upgraded 4 gauge wire. It worked great for a little while and randomly it started melting everything. Why?

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Old 09-13-2018, 07:01 PM   #2
LukeL
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Default Re: G29 problem

Are you sure it’s a G29 “Drive?” The FNR switch on a YDRE is just a rocker switch and shouldn’t melt. What specifically is melting? Motor cables? Battery terminals?


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Old 09-13-2018, 07:05 PM   #3
webn237
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Default Re: G29 problem

The f/r switch went bad and didnt melt. One terminal on a battery melted, some wires, the A2 wire that isnt on the motor melted as well

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Old 09-13-2018, 07:13 PM   #4
LukeL
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Default Re: G29 problem

Melted battery terminals are caused by excessive resistance. Either bad cables, loose connections, corrosion, or insufficient gauge wire.(you said yours are 4 AWG throughout?) Any of those would cause heat to build up, eventually melting.


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Old 09-13-2018, 07:18 PM   #5
webn237
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Default Re: G29 problem

So should we just go zero gauge and make sure its a good crimp?

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Old 09-15-2018, 01:48 PM   #6
Volt_Ampere
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Default Re: G29 problem

Gauge was not the problem. Bad connections - either loose or not clean are the problem that causes melting.
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