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Error code reference

Dacor Microwave Error Code LOCK

Displayed when a control panel pad is touched while the Safety Lock feature is active, indicating the control panel is deactivated.

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What the LOCK error code actually means

Your Dacor microwave's Safety Lock feature has been turned on, which completely disables the control panel so no buttons will work. This is a child safety function, not a broken microwave. You can unlock it by pressing three buttons in the correct sequence: HELP GUIDE, then 1, then STOP/CLEAR.

Diagnostic procedure

The full LOCK procedure

Step 1 is visible so you can confirm you are on the right page. The remaining steps, the ones that tell you whether to actually replace a part, unlock with any pass.

MyPros+ · DiagnosticsStep 1 preview
1
First diagnostic step
To cancel Safety Lock, touch HELP GUIDE, the number 1, and STOP/CLEAR.
More steps, wiring diagram references, and verified part numbers
Includes expected resistance and voltage values, connector pinouts, and supersession notes for replacement parts.
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Most common causes of LOCK

Ranked by how often they cause this code
  1. 1Safety Lock Activated Intentionally
  2. 2Accidental Key Sequence Entry
  3. 3Child Interaction with Control Panel
  4. 4Unfamiliarity with Lock Status Display

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Questions people ask about LOCK

What does LOCK mean on a Dacor microwave?
LOCK on a Dacor microwave means the Safety Lock feature is active and the control panel has been deactivated. This is not an error or malfunction. It is a built-in child safety function that prevents any button inputs from being processed. The microwave hardware is fully operational and the condition clears once the correct unlock sequence is entered.
Is it safe to use my Dacor microwave when LOCK is showing?
The LOCK display means the control panel is intentionally disabled and the microwave cannot be started in this state. The unit itself is not damaged or unsafe. Once the Safety Lock is deactivated using the unlock sequence, the microwave is safe to use normally.
How much does it cost to repair a Dacor microwave showing LOCK?
There is no repair cost associated with the LOCK display because it is not a malfunction. It is a software-level safety feature that is cleared by pressing the correct sequence of buttons on the control panel. If the control panel fails to respond to the unlock sequence after multiple attempts, that could indicate a touchpad or control board issue, which a technician would need to diagnose at a typical appliance service call cost ranging from $75 to $150 or more depending on your area.
How do I fix the LOCK display on my Dacor microwave?
To cancel Safety Lock, press HELP GUIDE, then the number 1, then STOP/CLEAR in sequence. Once entered correctly, the LOCK display will clear and the control panel will return to normal operation. No tools, parts, or service call are required to resolve this condition.
Will unplugging my Dacor microwave clear the LOCK display?
Unplugging and replugging the microwave may or may not clear the Safety Lock, depending on how the control board retains its state after a power cycle. The reliable and recommended method to clear the LOCK display is to enter the proper sequence: HELP GUIDE, then 1, then STOP/CLEAR. Using this sequence ensures the lock is intentionally deactivated rather than relying on a power reset.

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