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Microwave Sharp carousel model R-1440 appears to have had the child-proof lock feature accidentally activated--every time a button is touch on the face board, "lock" is displayed. As this unit is ~15 years old, the manual is long gone. Can you instruct as to overriding the "lock" feature?

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  • Sharp Master
  • 9,085 Answers

I would expect that you have a shorting membrane keypad.

The original part number for the plastic frame with keypad was FPNLCB074MRK0 but it is no longer available.

The oven will have to be retired.

We're happy to help you with free advice and we'd appreciate your thoughtful rating of our answer.

Posted on Oct 03, 2010

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1 Answer

Most of the buttons on my Goldstar MV1604SB stopped working


Does the display on your microwave read "Locked"? If so, then the Child Lock feature has been activated. To toggle the lock off, press and hold the Stop/Clear pad for more than 4 seconds. When this feature is active, most buttons are disabled to prevent accidental microwave use.

If holding the Stop/Clear button doesn't work, then I'd suggest there is a problem with the contacts behind the buttons. Sears Parts Direct has the parts diagrams for this microwave here: http://www.searspartsdirect.com/partsdirect/part-model/Goldstar-Parts/Microwave-Parts/Model-MV1604SB/1366/0123245 . (It's better to replace the control panel then to try to fix it.) Use the part numbers from the list to find price and availability at other sites.

The manual for the MV1604SB is available from Manage My Life: http://www.managemylife.com/mmh/owner_manuals/17638/GOLDSTAR-Countertop-Microwave-L0521424?brand_name_search=loosening+tight+screws .

I hope this helps.

Cindy Wells

Oct 13, 2011 | Microwave Ovens

3 Answers

My mother mistakenly locked her samsung microwave. She can't figure out how to unlock it and she can't tell me what model it is. Can you help?


On a friend's Samsung (she didn't tell me her model number either), you lock the keypad by pressing "0" and then "2". Press the same sequence to unlock the pad. Maybe this will work on her model.

May 31, 2011 | Samsung MW7490 Microwave Oven

1 Answer

I have accidentally locked my microwave oven (profile performance convection oven). I was cleaning the front. Can you tell me what to do?


Got you covered. Here you go:

Microwave - Explanation of the Child Lock Out Feature
Many microwave control panels can be locked to prevent accidental use or access by children.
There are two different ways to lock the control panel:
1. Press and hold the CLEAR/OFF pad for 3 seconds. The display will show "LOCK" and then revert to the time of day.
A small "L" will appear in the corner of the display as a reminder that the control panel is locked. If anyone tries to use the microwave, the display will show "LOCK".
2. On some models, press and hold the 5 and 7 pads simultaneously for 3 seconds.
To unlock the control: Repeat the procedure which was used to lock the control. (Press and hold the CLEAR/OFF pad for about 3 seconds or hold the 5 and 7 pad simultaneously for 3 seconds.)
Microwave - Explanation of the Child Lock Out Feature

Many microwave control panels can be locked to prevent accidental use or access by children.

There are two different ways to lock the control panel:

1. Press and hold the CLEAR/OFF pad for 3 seconds. The display will show "LOCK" and then revert to the time of day.
A small "L" will appear in the corner of the display as a reminder that the control panel is locked. If anyone tries to use the microwave, the display will show "LOCK".


2. On some models, press and hold the 5 and 7 pads simultaneously for 3 seconds.


To unlock the control: Repeat the procedure which was used to lock the control. (Press and hold the CLEAR/OFF pad for about 3 seconds or hold the 5 and 7 pad simultaneously for 3 seconds.)

That info is from GE

Hope that does the trick.
Regards, Farmerbear at FixYa.com






























Microwave - Explanation of the Child Lock Out Feature

Many microwave control panels can be locked to prevent accidental use or access by children.

There are two different ways to lock the control panel:

1. Press and hold the CLEAR/OFF pad for 3 seconds. The display will show "LOCK" and then revert to the time of day.
A small "L" will appear in the corner of the display as a reminder that the control panel is locked. If anyone tries to use the microwave, the display will show "LOCK".


2. On some models, press and hold the 5 and 7 pads simultaneously for 3 seconds.


To unlock the control: Repeat the procedure which was used to lock the control. (Press and hold the CLEAR/OFF pad for about 3 seconds or hold the 5 and 7 pad simultaneously for 3 seconds.)

Microwave - Explanation of the Child Lock Out Feature

Many microwave control panels can be locked to prevent accidental use or access by children.

There are two different ways to lock the control panel:

1. Press and hold the CLEAR/OFF pad for 3 seconds. The display will show "LOCK" and then revert to the time of day.
A small "L" will appear in the corner of the display as a reminder that the control panel is locked. If anyone tries to use the microwave, the display will show "LOCK".


2. On some models, press and hold the 5 and 7 pads simultaneously for 3 seconds.


To unlock the control: Repeat the procedure which was used to lock the control. (Press and hold the CLEAR/OFF pad for about 3 seconds or hold the 5 and 7 pad simultaneously for 3 seconds.)

Sep 13, 2010 | General Electric Microwave Oven

1 Answer

I need to know how to unlock it


The Child Lock is on.

Your owner's manual covers it. If for some reason you don't have yours, you can download it free here.

CHILD LOCK
You may lock the control panel to prevent the microwave from being accidentally started or used by children.

Example: To set the child lock.
1. Touch STOP/CLEAR.
2. Touch and hold START more than 4 seconds. LOCKED will appear in the display window with two beeps.

Example: To cancel the child lock.
1. Touch and hold START more than 4 seconds. LOCKED will disappear and you hear two beeps. At this time the oven is ready.

We're happy to help you with free advice and we'd appreciate your thoughtful rating of our answer.

Dec 13, 2009 | Goldstar MV-1501 Microwave Oven

1 Answer

Error message "chiLd"


There is a Child Safety lock-out feature on some microwave ovens. This enables the user to lock the keypad to prevent children from playing with the control panel. The model number you have this question posted under has this feature enabled/disabled by pressing and holding the "CLEAR/OFF" button for 3 seconds. However, the display reads "LOC" when the feature is activated. I suspect your model number is different because of the display indication you are receiving. Review your owner/operator manual for how to disable the child lock feature. If you no longer have the owner's manual, or if you still have questions, please post back with your BRAND NAME and MODEL NUMBER, so that I may be able to provide you with better assistance. I hope this helps you.

Nov 17, 2009 | GE JVM1440 Microwave Oven

1 Answer

Sharp Carousel Model R-1440 won't shut off


Take it immediately to a local Microwave repair shop...looks like one of the circuits may have gone...otherwise switch off from mains

Sep 28, 2009 | Sharp R-1480 Microwave Oven

1 Answer

I'm ''Child-Locked'' out of my microwave


try pressing 'stop' button for 3 seconds

Mar 15, 2009 | Microwave Ovens

2 Answers

Unlocking child lock on the sharp microwave model R316FSC


The Sharp Microwave/Convection oven I have says to touch the Custom Help button, the number "1", then touch the Start Button. To turn off the child lock, press the Stop button.
Or just unplug it, wait 1 minute, and plug in.

Jan 06, 2009 | Sharp R-308J Microwave Oven

1 Answer

How do you set the child lock on the sharp carousel microwave


Usually you access that feature via the "Custom Help" pad in newer models.

If that doesn't work, please reply back with your model number so we can help you.

We're happy to help you and we'd appreciate your thoughtful rating of our answer.

Jul 23, 2008 | Sharp Microwave Ovens

1 Answer

Microwave locked


On the R1490-series, you press Custom Help > "1" > Stop/Clear to turn the child lock off.

This may work for you, or press Custom Help and look for a lock option.

If your model does not have a Custom Help button, please reply back with your exact model.

We're happy to help and we appreciate your thoughtful rating of our answer.

Jan 16, 2008 | Sharp R-1480 Microwave Oven

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