Dishlex DX302 : Water not heating

Question

Our machine is not heating the water. I have confirmed that the heater unit has a internal resistance of 26ohms and is getting 240v on the active side. However it is only getting 85v across it's active and neutral that goes back to the control board. I am guessing that the control board needs replacing as the resistance from G5 to G6 is only 2Kohms instead of the 6Kohms as mentioned in your previous post.

I was hoping to get a copy of the wiring diagram to confirm, before having to purchase a new control board.