heaters and motors are my first thoughts but in fact could be a lot of things
the reason the machine trips is it has an earth fault and although the above are the most common causes it could be wiring , pumps, supressor ( if it trips as you turn the plug on ) and water leakage to name a few
if you dont understand this then you need a professional
haven’t had chance to look yet thought i asked before looking to narrow search down thanks,trips when you turn machine on, but it would work for awhile before tripping but now as soon as you start it