LOC Minor Easy DIY
Whirlpool Microwave LOC / Padlock — Control Lock Active
Whirlpool Microwave · Error code LOC
What LOC Means
Not a fault. The Control Lock (child lock) is on; the keypad will not respond and any press will beep an invalid-entry tone.
Symptoms
- LOC, 'L', or a padlock icon on the display
- Buttons beep but do nothing
- Microwave will not start
Common Causes
1
Control Lock was enabled intentionally or accidentally
Usually a long-press on Cancel/Off or a specific number key per the owner's manual.
How to Fix It
- Find your model's Control Lock toggle in the owner's manual (most Whirlpool OTRs: press and hold Cancel/Off for 3 seconds).
- If you don't have the manual, try a 3-second press on Cancel/Off, then on the '0' or 'Tools' key.
- If the keypad won't respond at all to the unlock combo, power-cycle at the breaker for 1 minute and try again.
- Persistent LOC after a power-cycle and the correct unlock combo points to a failed keypad — see SE / F2E1.
More Whirlpool Microwave Codes
Verified against manufacturer documentation: producthelp.whirlpool.com
Always unplug an appliance before servicing it. This guide is for informational purposes and is not a substitute for a qualified technician.