Hey mate, I've got 2 climate controls, both work fine fast heat fast cold up down ect, my heater was stuck on and heater tap wasn't moving on FC so I changed it now it does, however it's still stuck on hot air when I change the heat up and down and the tap isn't moving, I think it's a sensor somewhere but neither of the units will go into diagnostic mode, any ideas anyone? Help will be appreciated cheers!