Won't pull away from rest, but then runs if kicked

[The Pookster]

During a wet run yesterday my B4 with LRP X12 and Sphere TC stopped on track. Now it won't pull away from rest but if you give it a kick it runs OK until next time it comes to rest, then same thing happens.

Swapped the sensor lead and stripped and cleaned the motor but still the same. The speedo LEDs come on as expected but the motor doesn't turn.

Speedo seems dry, haven't got a different speedo or motor to try.

Any ideas?

[gazbaz2]

Originally Posted by The Pookster

During a wet run yesterday my B4 with LRP X12 and Sphere TC stopped on track. Now it won't pull away from rest but if you give it a kick it runs OK until next time it comes to rest, then same thing happens.

Swapped the sensor lead and stripped and cleaned the motor but still the same. The speedo LEDs come on as expected but the motor doesn't turn.

Speedo seems dry, haven't got a different speedo or motor to try.

Any ideas?

Sounds like the sensor in the motor its self matey, i had 1 like that, get it sent off they'll replace it no probs

[jim76]

could be moisture in the sensor etc. Stick it in an airing cupboard for a day or two to dry out properly and give it another try

[The Pookster]

Well it's all dry.

The motor makes no attempt to turn, if you hold the throttle on after 3 seconds the red and amber lights flash alternately on the speedo but can't find out what this fault code means.

[Smartalec]

Mine did exactly the same, sent speedo back to SMD and they replaced it

[barry]

I'm having the same problem. I went to the track today for a practise and managed to short circuit the wiring for about a second. Never done that before, and certainly won't do it again.

So I corrected the battery connector and plugged in and switched on. As soon as I switched the switch, smoke started appearing from around the esc area. I decided to come home to sort it out.

After testing it home, it appears to have developed a severe case of cogging. I haven't run this set up before, so not sure if my wiring blunder has anything to do with it or not... At first it was just a bit rough - it would appear to take about half a second to decide which way to spin the motor. I've read lowering the gearing helps, but it won't turn without a pinion!

I have a sphere tc esc and nosram storm evolution 10.5 motor and also get the red and orange lights if a hold full throttle for a few seconds.

Any help gratefully received. I don't know whether it's the motor or esc.

Cheers,
Barry