The short version
This code says the oven door latch assembly or the door switch and the wiring between them never confirmed the position the control drove it to. The cycle is held rather than the machine being unsafe: the control will not commit without a door it can verify.
The code and what the manufacturer documents for it
Reference| Code | Documented meaning |
|---|---|
| 4d52 | There may be a problem with the Oven Door Latch Assembly, the Door Switch, or the associated wiring. |
The behaviour that comes with this code
- 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 door has become harder to close over the last few months — A gradual change is a hinge or a seal moving, and it ends in exactly this code.
- 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.
The ranked causes behind this reading
- 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 switch inside the latch not changing state — Second: the contact is the part that wears, and it fails to make long before the motor stops turning.
Where to start, and what follows
- Open the door and look along the strike and the seal — Free, and it finds the obstruction that causes most of these.
- Leave the switch and the motor to a technician — Both sit behind trim that is easy to break and awkward to refit.
What you can do without tools
- 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.
Where the risk actually is
Safety
Isolate the appliance first. Unplug it or switch off its breaker before removing any panel; a capacitor can hold a charge after the power is off.
When a reset is not the answer
The line is straightforward. 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. Separately and more urgently: call before using it if the door can be opened while a cycle is running.
Codes next to this one
Which model lines this reading applies to
This reading is written for the model lines that lock the door under control rather than by hand, and it stays with the code in its title. What is deliberately not here: the resistance tables, wiring colours and part numbers that differ between model lines, all of which belong to the service documentation for a specific unit rather than to a page about a code. If a page exists for your exact family or model, that page is the more specific answer and it should be read first; the code index linked below is where those pages are listed.
Lead Appliance Repair Technician · 12 years experience
Experienced technician with 12 years specializing in washing machine and dryer repairs across all major brands.
