Lathe runs in reverse only

I was recently turning a large piece on my ACL355WL lathe. I caught in the wood so that it stopped turning, so switched off. When I pressed start again, there was an immediate relay-like click and it failed to start. I left for a while, but no change. However, when I put it in reverse, it spins as you would expect.
Any suggestions as to what might be causing it to trip out when in forward direction, and if it is repairable?
Thanks for the advice.

Hi,
You probbly need a new PCB for the control box, phone Axminster’s Customer Services team, they will be able to help you.
Regards,
Keith