Turned out wiring at side of heater box melted.
Try this first before you take glove box out etc to get to motor.
If you take passenger side heater box plastic cover off,2 trim clips holding it on,you will see a block connector with red&brown wire just above carpet.
Flick clip out& turn plug round to face you & undo.It will be burnt inside.
Either clean up or hard wire(cut plug&solder together)for good connection.
Just wanted to put this on here as forum has helped me a lot.Thanks