On the covered Kenmore 790 and Elite 790 slide-in range 4-digit, F022 (Elite model 790 electric slide-in range with 4-digit codes) means Kenmore's service table lists this code as: communication failure between the oven user interface board and the relay control board.
Differential
Likely causes of “Kenmore 790 and Elite 790 slide-in range 4-digit showing F022”, and how to tell them apart
- 1
The oven user interface board and the relay control board have stopped communicating
What separates it The display shows F022 and the oven will not start or stops mid-cycle
How to confirm Disconnect power to the range, wait 30 seconds and restore it
- 2
A one-off communication fault after a power event
What separates it F022 appeared after a flicker or a storm
How to confirm Reset the range at the breaker and run a short bake
- 3
A harness between the two boards that is loose or damaged
What separates it The code came after the range was moved or the panel was opened
How to confirm Check the plugs and the wires between the boards
- 4
A relay control board that has failed
What separates it The harness is sound and the code returns
How to confirm Replace the relay control board
- 5
An oven user interface control board that has failed
What separates it The relay board has been replaced and the code remains
How to confirm Replace the user interface board
Before you touch a setting
Record this first — changing settings destroys the evidence
- That the display shows F022 with the extra zero, and not the shorter F02
- Whether the oven stopped mid-cycle or refused to start
- Whether the touch panel responds normally
- The model number from the frame behind the oven door or the storage drawer
Try in this order
0 of 11 completedCorrect only the documented fault domain
ReversibleCut power to the range at the breaker, wait half a minute and switch it back on. If the error comes back, inspect the harness that joins the oven user interface board to the relay control board, push any loose plug home and replace the harness when it is damaged. A sound harness points to the relay control board, and a code that still persists after that points to the oven user interface control board. Parts named: oven user interface control board, relay control board.
Disconnect electrical power to the range, wait 30 seconds and restore power
ReversibleUse the range breaker so that both boards restart together, then run a normal bake cycle to test.
Check the wire harness connections between the oven user interface board and the relay control board
Reversibleor replace the harness if it is damaged, before you consider replacing either board.
Replace the relay control board, then the oven user interface control board if the problem continues
ReversibleThe Elite chart puts the relay control board first for F022, and the oven user interface control board only after it.
Disconnect power for 30 seconds
ReversibleSwitch the range off at its breaker, or unplug it, wait 30 seconds as the table says, and restore power.
Run a short bake
ReversibleSet a short bake at a moderate temperature and see whether the code returns. A clean run means that the fault may have been a one-off.
Check the wire harness
ReversibleIf F022 returns, disconnect power and look at the harness between the oven user interface board and the relay control board for loose plugs, chafing and burnt wires.
Replace a damaged harness
ReversibleReplace the harness if it is damaged, since a poor connection looks exactly like a communication failure.
Replace the relay control board
ReversibleIf the harness is sound, the next part named is the relay control board.
Replace the oven user interface control board
ReversibleIf the problem continues after that, the user interface board is the last part to replace.
Write down all four digits
ReversibleNote F022 exactly, with the extra zero, since F02 and F023 are different faults with different parts.
Model-specific
What is true of this model and not of its siblings
- The code on this page
- F022, a communication failure between the oven user interface board and the relay control board.
- Parts involved
- The wire harness, the relay control board and the oven user interface control board.
- Source
- Sears PartsDirect's table for Kenmore Elite 790 slide-in ranges.
- Four digits, two boards
- The Elite 790 range uses a control made of several boards that talk to each other, and its four-digit codes name which pair has lost contact. F022 is the user interface board and the relay board, which is the pair that switches the elements, so a range showing it often stops heating even though the display still lights.
- What to tell the technician
- Give the technician the exact code with all of its digits, the model number and a note of anything that preceded it, such as a spill on the panel, a power flicker or a recent move. Those details often decide whether a harness, a board or a panel is the first part to bring.
Stop boundary
When this stops being a self-service repair
- !Stop if there is scorching or a burning smell at the relay control board
- !Do not swap the two boards to test; they are different parts
- !The Elite chart puts the relay control board first, so ask for that board before the user interface board
- !A technician will want the full model number to match the board revision
- !Do not use the range if the oven switches itself on or off
Evidence ledger
Sources behind this answer
Exact questions
Common questions
What does F022 (Elite model 790 electric slide-in range with 4-digit codes) mean on a Kenmore 790 and Elite 790 slide-in range 4-digit?+
Kenmore's service table lists this code as: communication failure between the oven user interface board and the relay control board.
Will a power reset fix it?+
It can clear a one-off, so disconnect power for 30 seconds first.
Is it a wiring problem or a board problem?+
Check the harness first, since it is cheap, and replace the boards only if it is sound.
Is the repair expensive?+
The boards are among the dearer parts, so compare the cost with the age of the range.
Can I use the cooktop?+
Often yes, but avoid using the range until the oven control is repaired, since both share the control.
Is a power flicker enough to cause F022?+
A brief interruption can upset communication between boards, and a reset often clears it.
Should I try to open the range?+
Only the power reset is a home step, and any work behind the panel needs the range unplugged and a technician's care.