someone throw me a bone!!!!!

[la-boy]

Gonna make this as simple as possible. All connections good. batt. pack 51.2 on 2y/o batts. HD solenoid sending full voltage to controller. PB-6 working perfect. Cart was going 25mph, now 10-15mph. Cart still has no problem going up incline. How do I know if its the motor or the controller? Voltage out to motor is also 51v. The cables to controller had been loose. Guessing alot of heat was built up in controller. Can solenoid cause this problem?? thinking not.. 700a controller, GEd380 motor. beefed up cables... Need to order new controller ASAP, if thats the problem. have youth hunt with younguns soon. Also if controller?? who has best deal on a 500-600a controller. thx

[Xact1]

My guess is it's probably not the solenoid. That either outputs or it doesn't.

If your pack voltage is good (which it is) and you get proper voltage at the motor, my guess would be that the controller is the problem. That's what regulates power to the motor.

[scottyb]

With the cart on jacks so nobody gets hurt.
test leads on controller B- and M- you should have 51v when the solenoid clicks and then as the peddle is pushed down that 51v should go to almost zero.
Is that happening as described? if yes then the motor might be suspect. If no the controller could be hash

[la-boy]

Thanks, will check tomorrow. Still thinking its gonna b the controller. Hate to say it but its the lesser of the two, price wise!! Here's a open ? What controller do I replace it with. Cart has 5" lift, with homeade rear seat, 10" steel wheels and 23" UTV tires.

[shadowman]

is speed sensor testing ok/ almost sounds like limp mode but i think it would be slower.......................................

[scottyb]

Originally Posted by shadowman

is speed sensor testing ok/ almost sounds like limp mode but i think it would be slower.......................................

Could be, you are not describing the typical controller failure... in fact I haven't heard of a control that failed with partial speed? So solenoid welded or brushes bad or like Shadowman says, limp mode?

[la-boy]

Just checked what scottyb said yest. Put probes on m- and b- engaged soln. Got 50v, pressed pedal down, stopped at 14v. Also what is limp mode?? Thx guys

[scottyb]

You never said, is this a series cart?

Can you check / test your throttle output? What year is the cart?

[la-boy]

Well I think I'm screwed. Went to put in another solenoid I had and in my very limited experience and not thinkin straight I switched cables on the pack. In other words I put the cable from controller to pos side of pack and the cable off the bottom of soln to neg. side of pack. Nothing works now, did put old soln back on and still nothing. Please be gentle in telling me what I prob fried.

[la-boy]

Also when I now do the m- and the b- test scottyb said to do the voltage stays the same as I push pedal down. Prob finished off controller with my screw up, this is a series motor with a PB-6 that goes from 5k to 0k.