What you came for
On this oven the code 9d42 reports that the oven door latch assembly or the door switch and the wiring between them and the control disagree about whether the door is where it should be. The cycle is held rather than the machine being unsafe: the control will not commit without a door it can verify.
What the documentation says about this code
Reference| Code | Documented meaning |
|---|---|
| 9d42 | There may be a problem with the Oven Door Latch Assembly, the Door Switch, or the associated wiring. |
The observable side of this fault
- The door will not lock, or will not release — Both are the same fault: the control cannot confirm the position, so it will not move on.
- The code arrives at the end of a cycle rather than the start — A lock that releases badly reports the same disagreement as one that engages badly.
- NEAR MISS - the door is locked and the display is dark — A dark display with a locked door is a power fault, and the release for it is a different procedure.
What is usually behind it
- Something in the way of the door or the strike — Ranked first because it needs no tools: a packed load, a rack proud of its rail or a bent strike stops the door short of the position the switch reports.
- The harness or the control input — Last: the wiring to the lock runs through a hinge area that flexes every time the door moves, and it is checked before the board.
The check order this code implies
- Shut the door firmly and watch whether the lock completes its travel — Listening tells you whether the motor is running at all.
- Power the machine down and let the lock reset itself — A lock stopped mid-travel homes itself on the next power-up.
The safe checks, step by step
- Power down at the breaker so the lock can home itself — On the next power-up the control drives the lock to a known position, which clears a mid-travel stall.
About 10 min
- Check the hinges and the seal for an obvious drop — A door sitting low on its hinges misses the strike by a few millimetres, which is enough.
About 10 min
- STOP HERE if the lock assembly has to come out — Leave the door switch and its wiring exactly as the manufacturer fitted them: they are what keeps the machine from running with the door open.
The safety line on this appliance
Safety
Unplug the appliance or switch off its breaker before any panel comes off; a capacitor can hold a charge after the power is off. Everything in the procedure above stays outside the cabinet for that reason.
The point at which you call
Call when the door still will not lock with a clear opening, or when the code returns after a power-down: a lock motor and its switch are a single service assembly on most of these machines. Call before using it if the door can be opened while a cycle is running.
Neighbouring codes on this appliance
How far this page applies
What this page covers is the code as documented for the model lines that lock the door under control rather than by hand. Where a family-specific or model-specific page exists, it is the closer answer - start there, and use the index below to find it.
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