please help wife makes me do the dishes, my dishwasher is going through it`s cycle but not cleaning on investigation i realised that the tablet door is not opening, then on further investigation i found that the water is not heating up. putting 2&2 together i`m asuming that the tablet door will only open once the water has reached the set temp which inturn has got me looking at the heating element which i have removed from the machine but not sure how to test it. i have a multi meter but not quite sure what i`m looking for any help much appreciated. it`s a candy cd122-80