Re: Bosch SKT5002GB/03 – Not heating water….
not sure if it is the same internally as my larger Bosch SGS5338gb/12 but the heater checked out ok and the problem was a lack of supply voltage. This I traced to a dry joint on one of the relays on the control board, repaired it and it’s lasted 3 years (though the rest of the machine is a bit tired now)