Having problems with a Bosch Exxcel SGS45E68GB/64 dishwasher – it starts the programs ok (inlcuding heating the water (so I know the element is ok) and runs for a period of time but towards the drying cycle the washer is constantly emptying and refilling – never actually dries the dishes. I’ve measured the resistance on the NTC and is is open (infinity). The high limit side of the unit reads 0.3 ohms – does this suggest that the NTC is faulty. Can anyone offer advice please