Hello, I'm looking for help with Error 19 for our Bosch SMV58N90EU/97 dishwasher.
At first, I changed the water jacket solenoid valve, because the old one looked rusty. The resistance of the new solenoid is 7.6kΩ.
But Error 19 keeps displaying.
Then I checked the wiring, all ok. Then I checked the motherboard, nothing seems evidently burned, but I'm not expert.
Finally, I disassembled the door, and disconnected the detergent dispenser. Then error 19 disappears, machine will briefly start, then error 19 again. Wiring is ok, and resistance of the dispenser solenoid is 10.8kΩ.
What makes me dubious is that both the water jacket solenoid and detergent dispenser wires are constantly powered with 285V DC.
Should I change the detergent dispenser? or should I check some specific electronic?