If it were the correct model keypad you would not be having this problem. Take the model number off your motor unit and go to Sears. They can look it up for you. The model number of your opener will look something like this: 139.XXXXXSRTX

Your keyless entry lock may not be as safe as you think. A thief may be able to open it by trying as few as six combinations or just punching worn keys! I spent quite a bit of time in a work environment that had cipher (keyless) locks on certain doors. The codes had to be changed periodically for several reasons. One reason was the wear pattern on the keys. For example, if you have a lock with 10 buttons labeled 0 thru 9 and you use a four digit code such as 8-4-7-2 and never change it, only four of the ten buttons will show a wear pattern. That lets a thief know that six of the ten buttons are not part of the code, which makes it a lot simpler for him to try to figure out the access code. A three digit code makes it even easier for the thief. Some keyless locks do not allow for repeating digits in the codes. I presume thieves know this. If you have the type of lock that does not allow repeating digits, and its wear pattern is evident, it severely limits the number of combinations. A five digit non-repeating code has 120 possible combinations, a four digit non-repeating code has 24, and a three digit non-repeating code has only 6. Repeating code combinations raise those numbers to 3,125, 256, and 27 combinations respectively, but wear can patterns reduce those numbers since every repeated key is one less the thief has to try. For example, if a thief comes upon a lock with only the 3 key showing wear, he knows he only has to push that button. He just doesn't know how many times. His first guess will be 3-3-3. His second, 3-3-3-3, etc. Contrast those number with a lock with 10 digits and no wear pattern for the thief to discern. Five, four, and three digit repeating combinations now result in 100,000, 10,000, and 1,000 combinations respectively. Five, four, and three digit non-repeating combinations yield 30,240, 5,040, and 630 combinations respectively. It gets worse, much worse. Some (perhaps most) retail locks do not require you to enter the digits in any particular order, which drastically lowers the number of combinations. These locks can be opened on the first try if a wear pattern is discernible. If no digits repeat, all a thief has to do is punch each of the worn keys and turn the knob. That's it. So if you do install a combination lock, choose one that has at least ten buttons, provides for repeating digits in the combination, and be sure to change the combination--varying the digits in use--frequently enough to prevent obvious wear patterns on the keys. If possible, find one that requires the code to be entered in the proper sequence. And you thought the new lock was going to simplify things. :-)

We bought our second Keyless lock last week. Once you have the convenience you can never go back. It is great not having to give the kids keys which they will lose. Never fumble in my pocket. In fact, when we replaced the last one (only because we went from Brass to Pewter) we had a hard time finding the manual key. The batteries last forever and give you lots of warning when they stop to go...the lock opens and closes much slowwwwwwerrrrrrr. We upgraded from a lock that held just two codes to one that can hold 10. Now we can have a code for the neighbors, maid service, carpenter...etc.

My mother had one on her house for a few years but turned the other way so you had to punch in a code to get out of the house (my father had Alzheimer's and it was a great preventative for wandering.) Most of the one's I've seen have a modern feel to them, the handle on other side had a simple look that was appropriate to the handle. My 80-year old mother didn't have enough of a thumbprint left to use that option, but you can use a key or the code. Her lock might have been a different brand (purchased at Costco.com) but you could leave it in an unlock mode. My sister now has it on her side entry door as she didn't like the look with her very traditional home, but it has solved the problem of lost keys with teen-age boys. Sister says the thumbprint sometimes doesn't work, but since everyone in the family knows the code, it's not a big problem for them. We just used the included handle for the other side, but since I didn't install it, I'm not sure if it's a universal type that you could change if you didn't like what it came with.