I was in the space tonight and the left wheel pedal wasn’t responding, with the wheel spinning at one speed when switched on. I turned it on and off, tightened some of the black knobs attached to the wires on the side of the box, and when I turned it back on it was working again. Not sure what happened but could be worth @CeramicsTechs taking a look as I’m not sure what I’m doing exactly! 
Hey Steph,
Thanks for flagging and apols for the delay in replying. Work’s tied me up, which has meant my focus has been elsewhere.
The left wheel is deffo our most temperamental, I threw on it the other day and it seems to be working okay. Do shout if you have any more issues with it.
Cheers!