It's a Craftsman 1/2 horse model number 139.53995SRT MFG date 10/02. I bought this new in the box from a guy up the street from me that bought it new. It was still in the box, never used. I've replaced the batteries in both the remote and the keypad. I thought it might have been the new wireless router that I had installed a few months back but I've unplugged it and it still had the same problem. I assume it's the logic board but am wanting to make sure before I replace it.
The Managemylife web site is a good resource to find out what may be happening with your Garage Door Opener. I did some research for you at Managemylife.com and found an excellent article that also has multiple expert answers at the bottom of the web page that addresses the most common questions that have been asked by other members. I hope this will help until your expert can answer your specific question. I attached the link below.
You're getting interference from something. Unplug the opener and plug it into an extension cord and have that run to another room. Then shut off the circuit to the garage. If the problem still exists then, the problem is either something outside of your home (Cell antenna, neighbors, etc..) or the logic board has failed. If the machine works good on the extension cord, there is something in the garage circuit causing the problem.Thank you for using Manage My Life!
There was another garage door opener there that I replaced and there is a second garage door opener not 5' away. Both of those worked fine. I'll try the extension cord.
If they are on a different radio frequency, that could account for them not having the problems. I forgot to mention something else. If you have an outside keypad, take the batteries out of that and then check the remotes. If the keypad fails it can jam the frequency and cause the remotes to not work and/or not have any distance to them when they do work.
I can get the remotes and the keypad to work within 3'. The other concern I had was that this was made in 2002. It was brand new in the box when I got it 3 weeks ago but it has been sitting in that box for 9 years. Would the logic board just go bad sitting there? I'll test the remotes with the battery out of the keypad as well.
It would be unusual for the board to fail after having sat like that. But I've seen similar situations happen before. Given what this is doing though, it really seems more like an interference issue than a board failure.
I pulled the battery from the keypad, replaced the battery in the remote, ran an extension cord outside to another circuit and killed the power to everything in the garage and room above it, which included the cable modem and wireless router. I got about an extra 5 foot of range out of that. One thing I noticed is that there are 2 wire coming off of the logic board hanging down like antenna. One is white with copper and the other is gray with tin.
Is there any way you take a photo of the wires on the board and upload that to me? The gray wire is most likely going to be the antenna. The white wire.... That one has me stumped. and that could very well be why you have no range on the remotes. The door does operate normally other than no remote range, correct?
Yeah I can take a photo of it. I figured the white one with the copper would be the antena. It's about 7 inches or so and the gray one is about 4 or so. The opener operates perfectly, just no range for the keypad or remote.
I just need to figure out where that wire is supposed to be. If it has any kind of power on it (even low voltage) that close to the antenna it's going to cause interference and block the remotes. Very odd problem to have. I'll have a go at it again when you upload those photos. Thanks for working with me on this and being patient while I try to figure it out.
Here's the pics.
The white just wraps around the gray at the point of connection on the board. No voltage as far as I can tell.
I have never seen anything like that. neither has any of the 5 other techs up here that work on door openers. It looks like someone tried to "tune" the antenna or something. Take the white wire off and let's see what happens at that point. I will be leaving for the day shortly but will be back in early in the morning so you can post back your results when you can and we will proceed.
Ok, I unwrapped the white wire from the gray (it wasn't soddered on, just wrapped). Now i cant get the remote or the key pad to work at all. The wireless network is back on atm so in the morning when the kids get off to school , I'll shut everything down and see if it's an interference problem from the wireless. I tried hitting the learn button after the remote and keypad stopped working just to make sure it hadn't lost the code but I couldn't get it to do that either.
Try: Press and hold the learn button until the LED goes out (about 6 seconds). Then press and release the learn button and then press and hold the remote button until the opener lights blink. Then try the remote and see if anything has changed.
Ok. I pressed the button and cleared the codes. It re-learned the remote but I had to be within about a foot of the antena to get it to work. I shut off all of the power to everything again and ran an extension cord for power. I also pulled the battery to the keypad just to make sure. It actually seemed like I had to be even closer to the antena to get the remote to work (1 ft.). So basically i'm getting less range now than before.
As much as I hate to say it, I think it's going to have to be the logic board. Unless there is something outside that is just sending a massive interference. But I think if it were that strong, no matter what the frequency of it was, the other opener would be suffering as well.
Just as a follow up: I replaced the logic boad, reprogrammed the remote/ keypad and it works perfect. That's for all of your time and help!
Glad to hear it's working. That was really a very strange set of circumstances with the opener. We've all been up here scratching our heads about it. If if gives you any other issues just stop by and give us a shout.
I JUST REPLACED THE GEARS IN MY OPENER MODEL 139.52525SRT- 1/2 HP. THE PROBLEM I'M HAVING IS THAT WHEN I PUSH DOOR BUTTON, THE CHAIN ONLY GOES ABOUT 1FT OR SO AND THEN REVERSES. I CHECK ALL THE WIRING FROM MY DRAWINGS I MADE AND EVERYTHING SEEMS TO BE INSTALLED BACK CORRECTLY. ANY ADVICE PLEASE. THX JESS
HELLO: IS ANY EXPERT OUT THERE THAT CAN ANSWER MY REQUEST ABOUT MY GARAGE DOOR OPENER. THX JESS
Make sure you put the black cup back on the end of the motor shaft and that it is pressed all the way on. Make sure the RPM sensor is plugged in. If neither of these are the issue, then you probably did not have the motor shaft pushed all the way back when you tightened the coupler after replacing the worm gear. Loosen that coupler up and from the front of the motor (opposite end in which the coupler is on) push the shaft back as far as it will go. Hold it there while you tighten the coupler back up and then try it.
Thank you for your question after replacing the gear kit and the opener will not work. I agree with Don that you may not gotten the retainer collar back onto the shaft far enough and also make sure the interrupter cup is pushed all the way back onto the shaft for the RPM sensor. Please follow what Don has given you in his answer and if you are still having problems please let me know and we can continue to troubleshoot. Sam A.