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Appliance Fix Guide

Bosch Refrigerator error code

Bosch Refrigerator Error LOCK

The lock for changing settings is enabled.

The lock for changing settings is enabled.

Updated Aug 18, 2026
informationalno_parts
Bosch refrigerator repair guide for error LOCK
Error codeLOCKRefrigerator

Try these first

Start here before buying a part or taking the appliance apart.

  1. 1
    Check 1

    To deactivate the lock feature, press and hold the 'Lock' button for 3-5 seconds.

  2. 2
    Check 2

    To activate the lock feature, press and hold the 'Lock' button for 3-5 seconds until the lock indicator light illuminates.

A quick explanation

What does LOCK mean?

The lock for changing settings is enabled.

The answer you came for

How to fix Bosch refrigerator error LOCK

Start with the safest checks and work from simple to technical.

  1. 1

    Step 1

    1. Locate the 'Lock' button on your refrigerator's control panel. It may be labeled with a key or a lock symbol.

  2. 2

    Step 2

    2. Press and hold the 'Lock' button for three to five seconds.

  3. 3

    Step 3

    3. You should hear a beep or see the lock symbol disappear from the display, indicating the control panel is unlocked.

  4. 4

    Step 4

    4. If holding the 'Lock' button does not work, try pressing and holding the 'Options' or a similarly named button, as the lock function can sometimes be a secondary feature.

  5. 5

    Step 5

    5. If the lock persists, unplug the refrigerator from the power outlet for 5-10 minutes to perform a soft reset.

  6. 6

    Step 6

    6. Plug the refrigerator back in. The control lock should now be disengaged.

Read the additional checks from the current guide

How to Fix LOCK Error (Step-by-Step) Locate the 'Lock' button on your refrigerator's control panel. It may be labeled with a key or a lock symbol.Press and hold the 'Lock' button for three to five seconds.You should hear a beep or see the lock symbol disappear from the display, indicating the control panel is unlocked.If holding the 'Lock' button does not work, try pressing and holding the 'Options' or a similarly named button, as the lock function can sometimes be a secondary feature.If the lock persists, unplug the refrigerator from the power outlet for 5-10 minutes to perform a soft reset.Plug the refrigerator back in. The control lock should now be disengaged.Turn the appliance off, wait about 2 minutes, then turn it back on.

What to Check Next on This Bosch Refrigerator Bosch Refrigerator Error LOCK: Use the code or symbol as the starting clue, then confirm the actual symptom before ordering parts. Confirm the doors seal fully, vents are open, and temperatures have had enough time to stabilize after any setting change. Check for frost buildup, blocked airflow, fan noise, loose sensor wiring, and dirty condenser areas before replacing electronics. If the alarm or code returns, use the model number to test the matching sensor, fan, defrost, or control circuit instead of guessing at parts. If the issue returns after these checks, match replacement parts to the complete Bosch model number from the appliance tag. The same code can point to different components depending on the exact model and when the failure appears. Recommended Parts to Check No exact official OEM part number is listed here because the correct Bosch refrigerator part can vary by complete model number. These are targeted part-category searches, not universal fit claims. Bosch refrigerator temperature sensor Common replacement category: Temperature sensor / thermistor Fit note: Exact OEM part number varies by full Bosch refrigerator model number. Confirm compatibility before buying. Confidence: MediumThis category can be relevant for temperature, alarm, and cooling-sensor faults after the door seal, vents, and settings are checked. Search Amazon for Bosch refrigerator temperature sensor Bosch refrigerator evaporator fan motor Common replacement category: Evaporator fan motor Fit note: Exact OEM part number varies by full Bosch refrigerator model number. Confirm compatibility before buying. Confidence: MediumThis category can be relevant for airflow, fan, and uneven-cooling symptoms after ice buildup and obstructions are ruled out. Search Amazon for Bosch refrigerator evaporator fan motor Bosch refrigerator electronic control board Common replacement category: Main electronic control board Fit note: Exact OEM part number varies by full Bosch refrigerator model number. Confirm compatibility before buying. Confidence: MediumThis category can be relevant for repeated electronic, display, or cooling-control faults after connectors and power are checked. Search Amazon for Bosch refrigerator electronic control board Before ordering: match the part to the complete Bosch refrigerator model number on the appliance tag. Still Not Working? If the replacement part didn't fix the issue, you may have a wiring problem or main board failure. Ask a Technician Online - Get Answer in Minutes Find a Local Repair Pro Near You

If the code comes back

Do not keep replacing parts based only on the code. Repeat the safe checks above. If the fault remains, stop and arrange qualified service rather than ordering from the code alone.

What may be causing it?

  • Control panel lock feature has been activated to prevent accidental changes.

These are possibilities to investigate, not proof that one part has failed.

Recommended part

Recommended part for this error code

No replacement part recommended for this code

The researched guidance for Bosch Refrigerator error LOCK points to user-action and diagnostic steps above rather than a mapped replacement part. We will not invent a part or send you to an unrelated product.

Replacement options

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Make the money decision

Repair or replace calculator

Use the age and total repair estimate to get a simple comparison. This is guidance, not a guarantee.

Safety first

Disconnect power before opening panels or touching internal parts.

When to stop
  • Stop if you see burned wiring, melted connectors, water near electrical parts, or a gas smell.
  • Do not perform live-voltage testing unless you are trained and equipped for it.
  • Use the exact model manual or service information before replacing electronic controls.

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