Diplomat APM8703 Washer Dryer half load wiring

Just been out to a customer today and he has been messing with his switches on the front of the machine because his on/off switch wouldnt work. He has, for some reason unknown to me or his wife disconnected the half load button and now his dryer wont work. Just has the 4 wires dangling in the front.
I cant for the life of me remember the wiring, even though ive seen this type of machine in their 1000s over the years. Knowing my luck I wont come across one now for a couple of weeks!
I could probably work it out by deduction and trial and error but if anybody has any idea or has one of these machine hanging about it would be a real help if you could let me know the wiring. Failing that a wiring diagram.

As always guys, thanks a million.

Nick