Whirlpool Induction Cooktop Displaying "Loc":... | appliancefaults.com

Technical Background:

The 'Loc' function is a safety feature that prevents unintentional operation of the cooktop, often used as a child lock. The cooktop's Main Control Unit (MCU) monitors input from the touch controls. When the lock function is activated, the MCU ignores most control inputs except for the unlock sequence. Voltage paths associated with the lock control are essential to check on the board.

Symptoms:

The Whirlpool induction cooktop displays 'Loc' on the control panel and is unresponsive to user input. No cooking functions can be activated. The cooktop is essentially locked out.

Possible Causes:

Accidental activation of the control lock function.
Child lock feature engaged.
Software glitch in the cooktop's control board.
Power surge causing the cooktop to default to lock mode.
Touching and holding the lock symbol for several seconds.

Solution:

1

Locate the lock symbol on the cooktop control panel. It may look like a key or padlock.
2

Press and hold the lock symbol for 3-5 seconds. Observe if the 'Loc' display disappears.
3

If the 'Loc' display persists, consult the user manual for the specific deactivation procedure for your model. Some models require a specific sequence.
4

If the manual is unavailable, try pressing and holding other control panel buttons, like 'start', 'cancel', or 'timer', individually for 3-5 seconds.
5

Power cycle the cooktop by turning off the breaker for 1 minute, then turn it back on. Re-attempt the deactivation procedure. This resets the MCU.
6

If none of these steps work, carefully inspect the control panel ribbon cable connection to the main control board. Ensure it is properly seated.
7

If all else fails, the control board may be faulty and require replacement. This requires licensed technician diagnosis with a multimeter to check voltage and continuity.

Safety Warning:

Disconnect power to the cooktop at the breaker panel before attempting any repairs. Wear appropriate safety glasses and gloves. Be aware that capacitors on the control board can store a dangerous electrical charge even after power is disconnected.

Prevention:

Familiarize yourself with the cooktop's control panel functions and the location of the control lock button. Avoid accidentally pressing and holding the lock button. Keep the user manual readily available.

Expert Tip:

Some Whirlpool induction cooktops have a service mode that can be accessed by a specific button sequence. Check the technical service manual (available online) for the correct procedure to enter service mode. In service mode, there may be an option to reset the lock function or diagnose control panel issues.

Frequently Asked Questions

•Where can I find the user manual for my specific Whirlpool induction cooktop model?

The user manual can often be found on the Whirlpool website by searching for your model number. You can also try searching online for 'Whirlpool [your model number] user manual'.

•How do I safely disconnect power to the cooktop at the breaker panel?

Locate the breaker in your breaker panel that is labeled for the cooktop. Flip the breaker switch to the 'off' position. Verify the cooktop is no longer receiving power by attempting to turn it on.

•What tools do I need to remove the control panel to check the ribbon cable connection?

Typically, you will need a Phillips head screwdriver and possibly a small flathead screwdriver to release any retaining clips. Be gentle when removing the control panel to avoid damaging the ribbon cable.

Whirlpool Induction Cooktop Displaying "Loc": Deactivating the Lock Feature

Technical Background:

Symptoms:

Possible Causes:

Solution:

Safety Warning:

Prevention:

Expert Tip:

Frequently Asked Questions

•Where can I find the user manual for my specific Whirlpool induction cooktop model?

•How do I safely disconnect power to the cooktop at the breaker panel?

•What tools do I need to remove the control panel to check the ribbon cable connection?

Related questions

Technical Background:

Symptoms:

Possible Causes:

Solution:

Safety Warning:

Prevention:

Expert Tip: