Kenmore Elite 721 model electric range error codes

Kenmore Elite

These error code explanations help troubleshoot a problem for a Kenmore Elite electric range with a model number that starts with 721. When your range isn't heating, you may see an error code in the display. The control only displays F3, F9 and F19 error codes in the regular operation mode. If you don't see a code during a range malfunction, press Clear, and then press and hold Lower Bake and Lower Broil keys for 3 seconds. If the range has a failure that generated an error code other than ones shown above, you'll see that code appear. After noting the error code, press Lower Stop to clear the display. The error code will likely point you in the direction of the range failure. Find the error code in the chart below and repair the failure. For repair how-to help, visit the PartsDirect repair help section, which includes repair help for refrigerators, other major appliances, lawn and garden equipment, garage door openers, vacuum cleaners and more. Search for your model number to find a complete list of replacement parts for your range.

Error Code
Condition
DIY advice
F1, F2 or F8

Defective upper oven temperature sensor

Check/Repair

Unplug the range and measure the resistance of the upper oven temperature sensor. You should measure 1,090 ohms at room temperature (77 degrees F). If resistance is off by more than 100 ohms, replace the upper oven temperature sensor.

Possible parts
Upper oven temperature sensor
F3

Stuck key

Check/Repair

The code displays on the affected control display (oven or cooktop control display). For the cooktop control, unplug the range and check the ribbon wire connection between the control panel and the cooktop control board. If the F3 appears on the oven control, unplug the range and check the control panel ribbon wire connection on the oven control board. Reconnect the ribbon wire to the affected control if loose. If the ribbon wire connection is okay, press all keys on the affected control from different angles to free up the stuck key. Reassemble the range and plug it back in to restore power. If the code resumes, try this test. Unplug the range and disconnect the ribbon wire from the affected control. Reassemble the range and plug it back in to restore power. If the code appears with the ribbon wire unplugged, replace the affected control board because it's detecting a stuck key with the control panel unplugged. If the code doesn't appear with the ribbon wire unplugged, replace the control panel.

Possible parts
Control panel, oven control board, cooktop control board
F4, F5 or F18

Defective lower oven temperature sensor

Check/Repair

Unplug the range and measure the resistance of the lower oven temperature sensor. You should measure 1,090 ohms at room temperature (77 degrees F). If resistance is off by more than 100 ohms, replace the lower oven temperature sensor.

Possible parts
Lower oven temperature sensor
F6

Upper oven too hot

Check/Repair

The control senses upper oven temperature above 650 degrees F in bake or broil modes. Unplug the range. If the code appears when the oven is at room temperature, measure the resistance of the upper oven temperature sensor. You should measure 1,090 ohms at room temperature (77 degrees F). If resistance is off by more than 100 ohms, replace the upper oven temperature sensor. If the oven is overheating when the code appears, then you'll likely need to replace the oven control board because a stuck relay on the control board is causing the overheating.

Possible parts
Upper oven temperature sensor, oven control board
F9

Upper oven not heating

Check/Repair

A voltage supply problem could prevent all elements in the range from heating. See if the lower oven elements and surface burners heat. If no elements heat, check the house circuit breakers because the range may be getting only 120 volts instead of the 240 volts needed to power the heating elements. Reset both circuit breakers for the range because it's often difficult to tell whether a breaker tripped. If the range elements don't heat after resetting the breakers, unplug the range and check the power cord wire connections on the terminal block. Reconnect any loose wires. Replace the power cord if you find damage. If you find no problems with the power cord or circuit breakers, then you'll likely need to have a service technician diagnose and repair the problem because the technician will need to perform live voltage checks that are dangerous if not performed correctly. If only the upper oven elements won't heat, unplug the range and check the wire harness connections between the upper bake element and the relay control board. Reconnect any loose wires and repair any broken wires. Measure the resistance of the upper bake element using a multimeter. You should measure near 27 ohms of resistance through the upper bake element. Replace the bake element if you measure infinite resistance. If the upper bake element is okay and you find no wiring problems, check the resistance of the upper oven temperature sensor. You should measure 1090 ohms at room temperature (77 degrees F). If resistance is off by more than 100 ohms, replace the upper oven temperature sensor.

Possible parts
Upper oven bake element, power cord, upper oven temperature sensor
F10

Upper oven door lock failure

Check/Repair

Unplug the range and check the wire harness connections between the upper oven door lock motor and the relay control board. Reconnect any loose wires and repair any broken wires. Check the wire harness connections between the door lock switches and the oven control board. Reconnect any loose wires and repair any broken wires. Measure the resistance of the upper oven door lock motor using a multimeter. You should measure about 2,600 ohms. Replace the upper oven door lock assembly if you measure infinite resistance.

Possible parts
Upper oven door lock
F11

Communications error between the oven control board and cooktop control board

Check/Repair

Unplug the range and check the wire harness connection between the oven control board and cooktop control board. Reconnect any loose wires and repair any broken wires. If the wire connections are okay, reset the oven control board by pressing Lower Stop, holding down the Lower Bake and Lower Broil keys for 3 seconds, pressing Lower Stop, then pressing and holding Lower Bake and Lower Broil again for 3 seconds. If the code returns, replace the oven control board then reset the oven control board using the above procedure. If the code returns again, replace the cooktop control board and reset the oven control using the above procedure.

Possible parts
Oven control board, cooktop control board
F16

Lower oven too hot

Check/Repair

The control senses lower oven temperature above 650 degrees F in bake or broil modes. Unplug the range. If the code appears when the oven is at room temperature, measure the resistance of the lower oven temperature sensor. You should measure 1,090 ohms at room temperature (77 degrees F). If resistance is off by more than 100 ohms, replace the lower oven temperature sensor. If the oven is overheating when the code appears, then you'll likely need to replace the oven control board because a stuck relay on the control board is causing the overheating.

Possible parts
Lower oven temperature sensor, oven control board
F19

Lower oven not heating

Check/Repair

A voltage supply problem could prevent all elements in the range from heating. See if the upper oven elements and surface burners heat. If no elements heat, check the house circuit breakers because the range may be getting only 120 volts instead of 240 volts. Reset both circuit breakers for the range because it's often difficult to tell whether a breaker tripped. If the range elements don't heat after resetting the breakers, unplug the range and check the power cord wire connections on the terminal block. Reconnect any loose wires. Replace the power cord if you find it damaged. If you find no problems with the power cord or circuit breakers, then you'll likely need to have a service technician diagnose and repair the problem because the technician will need to perform live voltage checks that are dangerous if not performed correctly. If only the lower oven elements won't heat, unplug the range and check the wire harness connections between the lower bake element and the relay control board. Reconnect any loose wires and repair any broken wires. Measure the resistance of the lower bake element using a multimeter. You should measure near 22 ohms of resistance through the lower bake element. Replace the bake element if you measure infinite resistance. If the lower bake element is okay and you find no wiring problems, check the resistance of the lower oven temperature sensor. You should measure 1,090 ohms at room temperature (77 degrees F). If resistance is off by more than 100 ohms, replace the lower oven temperature sensor.

Possible parts
Lower oven bake element, power cord, lower oven temperature sensor
F20

Lower oven door lock failure

Check/Repair

Unplug the range and check the wire harness connections between the lower oven door lock motor and the relay control board. Reconnect any loose wires and repair any broken wires. Check the wire harness connections between the door lock switches and the oven control board. Reconnect any loose wires and repair any broken wires. Measure the resistance of the lower oven door lock motor using a multimeter. You should measure about 2,600 ohms. Replace the lower oven door lock assembly if you measure infinite resistance.

Possible parts
Lower oven door lock

Symptoms common to all ranges

Choose a symptom to see related range repairs.

Main causes: faulty temperature sensor, electronic control board problem, control thermostat failure, weak burner igniter, oven door problem
Main causes: broken broiler element, weak or broken boil burner igniter, control system failure, faulty temperature sensor, wiring failure
Main causes: bad bake element, broken burner igniter, control system failure, blown thermal fuse, faulty temperature sensor, wiring failure
Main causes: power supply failure, blown thermal fuse, bad relay control board, damaged terminal block, wiring failure
Main causes: broken oven door lock assembly, wiring failure, electronic control board problem
Main causes: power supply problem, control thermostat or electronic control board failure, broken element, bad burner igniter
Main causes: food splatters, spilling food on the oven door, allowing liquid to drip through oven door vent when cleaning the door

Repair guides common to all ranges

These step-by-step repair guides will help you safely fix what’s broken on your range.

July 20, 2018
By Lyle Weischwill
How to replace a range oven door switch

The oven door switch detects whether the oven door is closed and helps control the oven light. Replace the switch if it doesn’t control the oven light properly.

Repair difficulty
Time required
 30 minutes or less
February 20, 2015
By Lyle Weischwill
How to replace a range oven door lock assembly

Oven door not locking? You can replace the lock assembly in less than 30 minutes. Here's how.

Repair difficulty
Time required
 30 minutes or less

Articles and videos common to all ranges

Use the advice and tips in these articles and videos to get the most out of your range.

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Troubleshooting an F10 error code on a range video

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