The rinse is always done with cold water even if you select hot wash cycle. Sounds like either the hose from the hot tap is on the cold valve & cold is on the hot valve or the wires from the controller are swapped over. The red wire should be on the hot valve & blue wire on the cold valve. Quick check before doing any changes is to start machine and select cold wash on panel. Press start and let it fill for a minute then stop machine & check water coming in to bowl. It should be cold water.
Lincoln Appliance NZ, February 2013