I bought this reed switch due to an E18 error code on my Siemens dishwasher. I've only run the machine 3 times since fitting the part, but the machine has not thrown up the error code again, so it seems to have done the job
Kärcher Valve 90011350
15 Apr, 2020
Karcher Pressure Loss Fix
My pressure washer suddenly lost pressure, but the pump motor was still running. Dismantling the pressure washer I could see that a plastic part of the pressure control valve had disintegrated. This must be a common issue, as the replacement part has this piece made of metal. Replacing this valve restored the performance of the jet washer to its original.