If you’ve lived in your home for a few decades: or moved into one that’s seen a few generations: you might have a “beast” lurking in your garage. I’m talking about that heavy, metal-clad, chain-driven Sears Craftsman garage door opener that sounds like a tank but refuses to die.
You press the wall button, and it hums to life, pulling that heavy door up without a single complaint. It’s legendary. It’s a workhorse. It’s a piece of American manufacturing history from the 1970s or 80s.
But there’s a catch.
You just bought a new car, or perhaps your old plastic remote finally gave up the ghost after forty years of service. You head down to the local big-box hardware store, grab a “Universal Remote,” follow the instructions, and… nothing. You try another one. Still nothing. You check the back of your opener and see a part number starting with 139.6####.
Welcome to the 139.6 Mystery. At Door Openers and More, we get calls about this every single week. People are frustrated because their opener works perfectly, but they can’t find a remote that talks to it.
Today, I’m going to explain why these vintage units are so stubborn, why your “universal” remote is failing you, and: most importantly: how you can keep that legendary opener running for another twenty years with one simple fix.
The Era of the “Built to Last” Opener
Before we get into the technical weeds, let’s give some respect to the machine. The Sears Craftsman units with model numbers starting with 139.6 were built in an era where “planned obsolescence” wasn’t really a thing. These units featured heavy-duty motors, solid steel chassis, and gears that were designed to move heavy wooden doors day in and day out.
In the 1970s and 80s, these 139.6 models were the gold standard. If you look at yours, it’s probably covered in a bit of dust, but the internal components are likely in better shape than a plastic-geared unit bought three years ago. This is why it feels like a crime to throw them away just because a $30 remote won’t work.
Why “Universal” Remotes Aren’t Actually Universal
Here is the heart of the mystery. When you see a remote labeled “Universal” today, it usually means it’s compatible with systems made after 1993. Why 1993? That was the year the industry shifted toward standardized safety sensors and specific frequency ranges mandated by the FCC.
The vintage 139.6 Sears Craftsman models operate on frequencies and coding methods that have long since been retired. Some used a specific type of “dip switch” technology, while others used early “billion code” or even older analog frequencies that modern digital remotes simply cannot replicate.
The original remotes for these specific models are now officially NLA (No Longer Available). The manufacturers stopped making the internal chips for these remotes decades ago. When the remaining stock dried up in the late 90s and early 2000s, that was it. The “ears” on your garage door opener are tuned to a radio station that isn’t broadcasting anymore.
The 139.6 Hall of Fame: Is Your Model on the List?
If your model number starts with 139.6, you are likely in this “remote limbo.” Here is a quick reference chart of the most common models we see that still work great but have discontinued remotes.
| U.S. Sears Craftsman Model Number | Canadian Equivalent | Original Remote Status | The Solution |
|---|---|---|---|
| 139.653000 | 139.253000 | Remotes Discontinued | External Receiver Required |
| 139.654000 | 139.254000 | Remotes Discontinued | External Receiver Required |
| 139.655000 | 139.255000 | Remotes Discontinued | External Receiver Required |
| 139.659000 | 139.259000 | Remotes Discontinued | External Receiver Required |
| 139.661000 | 139.261000 | Remotes Discontinued | External Receiver Required |
| 139.662000 | 139.262000 | Remotes Discontinued | External Receiver Required |
| 139.663000 | 139.263000 | Remotes Discontinued | External Receiver Required |
| 139.664000 | 139.264000 | Remotes Discontinued | External Receiver Required |
If you see your number here, don’t panic. You don’t need a new $500 garage door opener installation. You just need to give your old dog some “new ears.”
Quick note for our Canadian friends: these same vintage Sears/Craftsman openers often show up with a slightly different model number format. Instead of the U.S. 139.6#### prefix, Canadian versions typically start with 139.2#####. For example, while a U.S. model might be 139.655000, the Canadian equivalent is often 139.255000. The good news: the external radio receiver solution is perfect for these Canadian 139.2 models too.
The Solution: The Replacement Radio Receiver Kit
Since the internal radio receiver of your 139.6 unit can’t understand modern remotes, the solution is to bypass it entirely. We do this by installing an External Radio Receiver Kit.
Think of it like adding a Bluetooth adapter to an old stereo system. The stereo still sounds great and has plenty of power, it just doesn’t know how to talk to your phone. By plugging in an adapter, you bridge the gap.
Linear Universal Plug in Radio Receiver Kit
How It Works
A receiver kit consists of two main parts:
- The Receiver: A small box that mounts near (or on) your garage door opener motor.
- The New Remotes: Modern, secure transmitters that talk directly to that new box.
You connect the receiver to the same terminals where your wall button wires in (usually terminals 1 and 2). When you press your new remote, the receiver hears the signal and sends a quick pulse to the opener, telling it to “Go!” Just like you pressed the wall button yourself.
Why This is Better Than a New Opener
- Cost: A receiver kit is a fraction of the cost of a new unit.
- Ease of Install: Most homeowners can install a kit in about 15 to 20 minutes with a simple screwdriver.
- Security: Modern receiver kits use “Rolling Code” technology. The old 139.6 remotes were actually quite easy for hackers to copy. New kits change the code every time you click the button, making your vintage opener more secure than it was when it was brand new!
Choosing the Right Kit
At Door Openers and More, we specialize in exactly these kinds of “dinosaur” problems. We have a few favorite kits that play perfectly with the Sears Craftsman 139.6 series.
If you want a single-button setup that is reliable and sturdy, a standard Linear kit is usually the way to go.
Linear Universal Plug in Radio Receiver Kit
If you have multiple cars or want to add a keypad to the outside of your house (something many of these 70s units never had), we have expanded kits that include multiple remotes and wireless keypads.
Linear MegaCode Wireless Keypad
Don’t Let the Big-Box Stores Fool You
If you walk into a major hardware chain and ask for a remote for a “139.653000,” the person behind the counter will likely tell you that you need a whole new opener. They aren’t necessarily lying: they just don’t carry the specialized parts required to keep vintage gear running. They are in the business of selling new boxes, not fixing old ones.
We take a different approach. If your motor is still strong and your rail is straight, why waste all that metal? Adding a receiver kit is the eco-friendly, budget-friendly, and frankly, the “pro” way to handle a vintage Craftsman.
How to Get Started
Before you buy anything, do one quick check:
- Verify your model number starts with 139.6.
- Make sure your wall button still opens the door. If the wall button doesn’t work, you might have a bigger mechanical or circuit board issue.
- Look at the back of the motor to see where the wires from your wall button connect.
Once you’ve confirmed the unit still has life in it, head over to our online store. We keep these receiver kits in stock and ready to ship. We’ve helped thousands of homeowners solve the “139.6 Mystery,” and we’d love to help you too.
If you’re unsure which kit is right for your specific setup, just give us a shout. We’re friendly, we know our stuff, and we actually enjoy talking about these vintage “tanks.” Let’s keep that Craftsman humming for another few decades!