Kenmore 722 series dishwasher error codes

Kenmore 722 series dishwasher code FE

Listed as water overflow detected.

The drain pump automatically runs when the FE code is displayed. A leaking water inlet valve or a stuck relay on the electronic control board can allow water to fill the dishwasher constantly. To check for a leaky water inlet valve, unplug the dishwasher and see if the tub continues to fill with water. If it does, shut off the water supply and replace the water inlet valve because the valve is letting water to flow into the dishwasher constantly. If water stops filling when you unplug the dishwasher, then you'll likely need to replace the electronic control board because the control board is constantly sending current to the water inlet valve. Parts named: water inlet valve, electronic control board.

• A leaking water inlet valve that lets water flow in constantly: FE appears and the tub keeps filling after the cycle stops. Unplug the dishwasher and see whether the tub continues to fill
• A stuck relay on the electronic control board that keeps the valve energised: The tub stops filling when you unplug the dishwasher. The chart replaces the control board if filling stops on unplugging
• A drain fault that leaves water in the tub: The tub is full and the drain pump is not clearing it. The drain pump runs by itself when FE shows; listen for it and check the drain path

The chart says the drain pump runs automatically when FE is displayed, so give it time to lower the water.

If it does, shut off the water supply and replace the water inlet valve, which is letting water in constantly.

The chart says the control board is constantly sending current to the water inlet valve, so the board is the fault.

FE (722 series table).

Water inlet valve and electronic control board.

Towels, a shallow pan, and a screwdriver or nut driver.

What does FE mean on a Kenmore 722 dishwasher? Water overflow detected, in the chart's words.

Does the dishwasher drain itself? Yes. The drain pump runs automatically when FE is displayed.

How do I tell the valve from the board? Unplug the dishwasher. If the tub keeps filling, the valve is leaking; if filling stops, the board is sending current.

Shut off the water supply at once if the tub keeps filling, because it can overflow onto the floor

Do not reconnect power until you know whether the valve or the board is the fault

Kenmore 722 series dishwasher code nE

Listed as diverter motor failure.

Unplug the dishwasher and check the wire harness connections on the diverter motor and diverter position switch. If the wiring connections are okay, unplug the diverter motor wires and check resistance through the motor using a multimeter. The meter should measure around 4,000 ohms of resistance. Replace the diverter motor if the meter measure infinite resistance. If the diverter motor is okay, measure the resistance through the diverter position switch with the switch plunger pushed in and with the switch plunger extended. The meter should measure infinite resistance with the switch plunger in one position and near 0 ohms of resistance with the switch plunger in the opposite position.

If the meter measures the same resistance regardless of switch plunger position, replace the diverter position switch because it isn't detecting diverter position. Parts named: diverter motor, diverter position switch.

• Loose wiring on the diverter motor or the diverter position switch: The nE code appears and the spray does not switch between arms. Unplug the dishwasher and check both wire harness connections
• A failed diverter motor: The wiring is secure and the motor measures infinite resistance. Measure the motor; the chart expects around 4,000 ohms
• A diverter position switch that does not detect the diverter position: The motor is good and the switch reads the same in both plunger positions. Measure the switch with the plunger pushed in and extended

on both parts before you measure anything with the meter, and check the motor plug is seated.

Unplug the motor wires and measure it. The chart expects around 4,000 ohms; replace the motor if the reading is infinite.

One position should read infinite and the other near 0 ohms. If the reading is the same either way, replace the diverter position switch.

nE (722 series table).

Diverter motor and diverter position switch.

A multimeter and a screwdriver or nut driver.

What does nE mean on a Kenmore 722 dishwasher? A diverter motor failure, in the chart's words.

What should the diverter motor measure? Around 4,000 ohms; infinite means replace it.

How is the position switch tested? With the plunger pushed in and extended; one reads infinite and the other near 0 ohms.

Stop and unplug before unplugging the diverter wires

Replace one part at a time, since the chart tests the motor and the switch separately

Kenmore 722 series dishwasher code tE

Listed as thermistor (temperature sensor) failure.

Unplug the dishwasher and disconnect the wires from the thermistor on the heater. Measure the resistance through the thermistor using a multimeter. The meter should measure 11,320 ohms at 75 degrees (room temperature). Replace the heater assembly (which includes the thermistor) if the meter measures less than 1,000 ohms or more than 20,000 ohms. If thermistor resistance is good, reconnect the wires to the thermistor and check resistance through the thermistor wires that connect to the electronic control board (blue and red wires on RD6). The meter should read the same resistance as for the thermistor.

If the meter measures correct thermistor resistance through the wires, you'll likely need to replace the electronic control board because it's not accurately detecting thermistor resistance. Find and repair the thermistor wiring failure if the meter measures infinite resistance or near 0 ohms through the sensor wires. Parts named: heater assembly, electronic control board.

• A thermistor that reads outside its range: The tE code appears and the machine will not heat correctly. Measure the thermistor; the chart expects 11,320 ohms at 75 degrees
• A break or short in the wiring to the control board: The thermistor reads correctly but the wires read infinite or near 0 ohms. Measure the blue and red wires on RD6
• A control board that is not detecting the thermistor resistance accurately: The thermistor and the wires measure the same and correct. The chart replaces the board when everything else reads correctly

Measure the resistance through the thermistor with a multimeter, with the room at about 75 degrees for a fair reading.

Replace the heater assembly, which includes the thermistor, if the meter reads less than 1,000 ohms or more than 20,000 ohms.

The blue and red wires should read the same as the thermistor. Repair the wiring if it reads infinite or near 0 ohms, and replace the board if the reading is correct.

tE (722 series table).

Heater assembly (which includes the thermistor) and electronic control board.

A multimeter and a screwdriver or nut driver.

What does tE mean on a Kenmore 722 dishwasher? A thermistor (temperature sensor) failure, in the chart's words.

When is the heater assembly replaced? If the meter reads less than 1,000 ohms or more than 20,000 ohms.

Stop and unplug before disconnecting the thermistor wires

The thermistor is part of the heater assembly, so it is replaced together with the heater