Question about Sears Craftsman LiftMaster Chamberlain Garage Door Opener Wireless Keypad Model 976LM Security+

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How can I find a duplicate key that has broken in half?It has a number on one side CH751 and looks similar to a Master Lock key.

Where can I find a duplicate key for my filing cabinet.It broke in two and two drawers are locked.It has a number on one side which is CH751.Can someone please help me?

Posted by Debi English on


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The fastest and easiest method to get this resolved is to use a locksmith. If you contact the manufacturer, they might not respond in a reasonable time or at all. Call around and see what a locksmith charges and what they recommend. If you have the broken key they might be able to cut a new one for you from the broken pieces. They may also be able to come out and pick it and then change the lock for you.

Posted on Jun 22, 2014


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How do I change the combination on a door key safe

Once it is already OPEN there is probably something side the safe and on the back side of lock access that will allow you to change the combination. I do not know the model number but this is standard practice so that one must know the current combination to reset it to a new one. Specifically how would be in your manual. The key would allow the over ride to access this recombination. I have a digital door lock that works similarly and you can either enter the numbers or use a key to unlock it unlike a analog safe it has both a master code (which allow the ability to create new codes or delete old codes) and an access code.

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If you have both pieces of the broken key, it can be duplicated.

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A good locksmith should be able to duplicate the key. They will need to put it in a vise and mark the new key to cut it. Not just stick it in an automatic machine like at a hardware store.

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If you lose you keys, you will need to order duplicate keys from the manufacturer. They will need the serial number and model number of your safe and proof of purchase. After establishing the authenticity of the buyer, they will supply fresh keys at a nominal charge. The duplicate keys are specially ordered from the factory and takes 2-4 weeks for delivery.
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Most dealers do not keep the original key number, it is sometimes written amongst the handbook and other paperwork you receive, if you do not have any luck with your dealer and cannot find the key number, try removing the actual ignition and taking it to a master locksmith, if you have a helmet/seat lock and it is the same as your main key than it may be easier to remove those locks, a master locksmith can cut the original key for your barrel/ignition.

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The only way to open your lock is by using the correct combination. There is no other way.

You can either try every possible combination or you will need to contact the manufacturer. But they cannot assist you if the lock does not have a serial number (they recently stopped applying serial numbers for greater security) and they will not assist if the lock is already secured to anything. There are a number of other hurdles as well, click here for details. Given that they state that you will have to wait four to six weeks for an answer, it's going to be far quicker to just try every possible combination.

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I found an error D08-227. Have you scrambled 'D' and 'P'?
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hi it will need codeing if you go to the dealers it will cost you arm and leg check your phone book find a auto electrician that also cuts keys and can code it for you as well you may have to get the key from dealers but ask the auto electrician he will know best place as far as reverse sensors the only simple change on these is the fuse as the rest are sealed modules unless someone accidently pulled the wiring off in the boot could have a quick check but if you get a auto electrician out for your key get him to have a quick look

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