Quote:
Originally Posted by MrCreosote
.... Cart will ALWAYS go into reverse and work. But about 2/3 to 3/4 of the time, if you switch into forward, it acts like it is in neutral. I had the switch replaced, but it still acts the same way.
I have found a "work around". If I am moving slightly in reverse when I switch to forward, it will go forward about 95% of the time.
So, any ideas what could be wrong? ...
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Best case, it seems like an intermittent connection of the Forward wiring.
The FNR switch is just and ON-OFF-ON switch.
48v goes into the center post and the switch directs the voltage to controller pin 8 (Forward) or pin 16 (Reverse).
Since the switch has been replaced, the next thing I would do is reseat the controller connector.
Maybe spray some contact cleaner on the connector pins.
When I got our cart the first time I went to pull the controller connector the latch was not caught.
The next time Forward doesn't work measure the voltage on pin 8 of the controller connector.
The same wires to the motor from the controller are used for Forward or Reverse, but make sure they are tightly connected.
Make sure the ground cables for the controller are tight.
If everything else checks out I would guess a connection in the controller for the Forward circuit may have a cold solder joint.
What controller do you have?