Bosch Dishwasher Error Code F19

F19 on a Bosch dishwasher indicates that the flow meter impeller is sluggish or not rotating freely during water intake. The flow meter measures how much water enters the dishwasher by counting impeller rotations using a reed switch. When those rotations are too slow or inconsistent, the control board logs F19 and stops the cycle. The cause is typically mineral buildup, debris, or a loose electrical connection at the sensor.

It is not recommended to run the dishwasher while F19 is active. The dishwasher uses flow meter data to control water intake, and a faulty reading can lead to improper water fill levels. Running cycles with unreliable water measurement could result in incomplete washing or, in some cases, overfill conditions. Resolving the error before resuming normal use is the safest approach.

If the fix is simply cleaning the flow meter impeller or reseating the reed switch connection, the cost is minimal, covering only your time or a basic service call fee. If the flow meter itself needs to be replaced, parts typically range from around 30 to 80 dollars depending on the model, with professional labor adding another 80 to 150 dollars or more. Diagnosing the fault thoroughly before ordering parts can help avoid unnecessary expenses.

In many cases, yes. Start by checking that the reed switch plate is properly seated and that the reed switch connection plug is fully engaged, as these are simple fixes that do not require parts. If the connections are fine, remove the flow meter and inspect the impeller for scale or debris, cleaning it carefully. If the impeller is physically damaged or cleaning does not resolve the fault, the flow meter will need to be replaced, which is a moderately involved repair requiring basic appliance disassembly skills.

A reset may temporarily clear the F19 code, but the fault will return if the underlying cause is not addressed. If the impeller is still restricted by scale or debris, or if the reed switch connection is still loose, the dishwasher will detect the problem again during the next water intake cycle. A reset is useful for confirming whether the error was a one-time glitch, but it should not be treated as a permanent fix.