Hi, I have the above dishwasher and last night my electricity CB trip switch tripped after resetting the CB i noticed my dishwasher’s power light was flashing in a 3 flash cycle, now when i run the machine it runs for 30 mins or a bit more then stops with the flashing power light, checking the water inside it is still cold, so from that I presume the heater is broken, but is there anything else which would cause the 3 flash fault and cause the water to stay cold? it fills ok and drains ok when i press and hold the power button in for a few seconds.