Jenn-Air Dishwasher Error Code E:19

E:19 means the flow sensor is not producing pulse signals that the control board expects to see during a wash cycle, even though the heat pump has detected water in the system. The dishwasher responds by stopping the programme and draining the water. The fault points to a problem with the flow sensor reed switch, the wiring connecting it, or a blockage in the sensor itself.

You should not continue running the dishwasher while this error is active. The machine stops the cycle and drains precisely because it cannot confirm that water is circulating correctly, and running the pump or heat pump without verified water flow risks damage to those components. Address the fault before resuming normal use.

A power reset may temporarily clear the error code from the display, but if the underlying problem with the flow sensor or wiring is still present, the fault will return as soon as the dishwasher attempts to run a cycle and again detects no pulses. A reset is useful for confirming whether the fault is intermittent, but it does not resolve the root cause.

Checking and reseating wiring connectors or clearing debris from the flow sensor impeller are tasks many experienced DIYers can handle with basic tools. Testing the reed switch requires a multimeter and some familiarity with electrical testing. Replacing the flow sensor unit is a moderate repair, but if the control board turns out to be the cause, that replacement is more complex and may be better left to a qualified technician.

If the fix is as simple as reseating a connector or clearing debris, there may be no parts cost at all beyond your time. A replacement flow sensor typically falls in the range of $30 to $80 for the part. If a technician is needed for diagnosis and repair, labor costs can add $100 to $200 or more depending on your location and the complexity of the repair.