Bosch Dishwasher still has E19 after changing heat exchanger valve

[Twoten]

Bosch SPV69T00GB/30 dishwasher with an E19 error. The heat exchanger valve was open circuit so I replaced the heat exchanger valve 1033896.
Switching the machine on shows the program time for about a second, then returns to the E19 error code.
The new heat exchanger valve has a resistance of 7.4Ω.
I have also tested back from the PCB to check the integrity of the wires and connector going to the valve.
Is there anything else that can present an E19 error or is to possible that the valve has damaged the PCB?

[electrofix]

Twoten wrote:Bosch SPV69T00GB/30 dishwasher with an E19 error. The heat exchanger valve was open circuit so I replaced the heat exchanger valve 1033896.
Switching the machine on shows the program time for about a second, then returns to the E19 error code.
The new heat exchanger valve has a resistance of 7.4Ω.
I have also tested back from the PCB to check the integrity of the wires and connector going to the valve.
Is there anything else that can present an E19 error or is to possible that the valve has damaged the PCB?

7.4 ohm ??

Dave

[kaibart]

Error e19 is usually the valve you have changed or the dispenser and lastly the power module

[Twoten]

kaibart wrote:Error e19 is usually the valve you have changed or the dispenser and lastly the power module

Thanks kaibart, I’ll go and check the dispenser.

[Twoten]

The detergent dispenser tested OK so it looks like the main PCB.
QER said they wouldn’t be able to repair it, so, as the module and solenoid is not far off £220 and the machine’s 8 years old the customer has decided to repace.
Thanks for the advice.

[Author]

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