Jenn-Air Dishwasher Error Code E:16

The E:16 error code on a Jenn-Air dishwasher indicates that the flow sensor is detecting water movement through the supply line even though the filling valve has not been commanded to open. Under normal operation, water only flows when the control board activates the inlet solenoid valve. When the flow sensor registers impulses outside of this commanded fill cycle, the control interprets this as an unauthorized or uncontrolled water entry event and triggers E:16 to protect against overfilling.

The filling valve, also called the inlet solenoid valve, is the component most directly implicated in this fault. If the valve's solenoid fails in a stuck-open or partially open position, water can seep or flow into the tub continuously regardless of whether the control board has sent an activation signal. This means the valve is no longer responding correctly to control commands, allowing water to bypass the intended fill cycle. Checking whether the valve is mechanically stuck open or whether its solenoid coil has failed is the primary diagnostic step.

A secondary cause involves the actuation circuit between the control board and the filling valve. If wiring to the valve is shorted or the relay driving the solenoid is malfunctioning, the valve may receive a false activation signal, causing it to open unintentionally. In some cases, debris or mineral deposits can prevent the valve's internal diaphragm from seating properly, resulting in a slow but continuous flow that the sensor detects even during idle periods.