Amana Range Error Code F93
Invalid lock/unlock inputs detected.
Invalid lock/unlock inputs detected.
Get the full diagnostic procedure for F93.
- Step-by-step tests with expected resistance, voltage, and continuity values
- Wiring diagram references and connector pinouts from the OEM service manual
- Verified part numbers when replacement is required
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What F93 means on a Amana range
The F93 error code on an Amana range indicates that the control board has detected invalid or conflicting signals from the door lock mechanism. Specifically, the system monitors inputs from the lock and unlock position sensors on the door latch assembly. When the control receives signals that contradict each other, such as both the locked and unlocked inputs reading active simultaneously, or neither reading active when one should be, the F93 fault is triggered. This condition tells the board that it cannot confirm the true position of the door latch.
The door lock assembly on a range contains a motor-driven latch mechanism along with position switches or sensors that report the latch state back to the electronic control board. These inputs are critical during self-clean cycles, when the door must be confirmed as fully locked before high-temperature operation is allowed. A failure in any part of this feedback loop, whether the latch motor, the position switches, the wiring harness, or the control board itself, can produce conflicting input signals and trigger this fault.
Common sources of the F93 code include a worn or jammed door latch assembly where the mechanical components no longer reach their full travel positions, damaged wiring between the latch assembly and the control board, or faulty position switches within the latch unit itself. In less common cases, the electronic control board may be misreading valid signals due to an internal failure. Identifying which component is at fault typically requires checking the continuity and operation of the latch assembly and inspecting the harness for damaged conductors or loose connectors.
Source: manufacturer service documentation.
Common causes of F93
- 01
Faulty door latch assembly
Part replacementThe latch motor or internal position switches inside the latch assembly can wear out or jam, preventing the latch from reaching a fully locked or unlocked position. This causes the control board to receive contradictory or missing position signals.
- 02
Damaged or loose wiring harness
Wiring / connectionThe wiring between the door latch assembly and the electronic control board can develop broken conductors, chafed insulation, or loose connector terminals. Inspect the harness routing near the door hinge area, where repeated movement causes wear.
- 03
Failed door latch position switch
Part replacementIndividual position switches within the latch assembly can fail open or closed, sending a constant incorrect signal to the control board regardless of actual latch position. Continuity testing of each switch will confirm a failure.
- 04
Debris or obstruction in the latch mechanism
Wiring / connectionFood debris or grease buildup can physically block the latch from completing its travel, preventing the position switches from actuating correctly. Cleaning the latch area and checking for obstructions is a no-cost first step.
- 05
Defective electronic control board
Part replacementIf the latch assembly, wiring, and switches all test correctly, the control board itself may be misinterpreting the input signals due to an internal component failure. This is the least common cause and the most expensive to address.
Frequently asked questions about F93
What does F93 mean on a Amana range?
Can I reset the F93 code to clear it?
Is it safe to use my Amana range while F93 is displayed?
How much does it cost to fix an F93 error on an Amana range?
Can I fix the F93 error myself, or do I need a technician?
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