I have a liftmaster garage door opener unit. The remote work...

I have a liftmaster garage door opener unit. The remote works when it is very close to the unit. but will not work as the remote is moved away. I replace the battery on the remote but still the same result. I am not sure why the signal gets weaker as i move away from the unit.

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jade avatar
6 years ago #2
jade
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I found some troubleshooting advice for this unit here: http://www.bearcatco.com/helpgifs/liftmaster_troubleshooting.html

dantut avatar
5 years ago #3
dantut
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Do you have an LED bulb in the unit or nearby? Try turning off the LED bulb or device and try to see if it works.
http://www.diyforums.net/i-had-2-chamberlain-garage-door-openers.-one-stopped-working-correctly.-i-c...-9201624.html

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Garagerepairguy avatar
5 years ago #4
Garagerepairguy
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It is cool that you figured out the LED situation. It is a bit weird though that an LED light would interfere with with a radio signal. I will have to investigate this issue further. I will also have to call liftmaster and see what they have to say about this.

jade avatar
5 years ago #5
jade
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Please post about it when you get some answers.

dantut avatar
5 years ago #6
dantut
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LED bulbs also interfere in ceiling fans where there is a remote control to turn the fan or lights on and off.

I had a incident issue open with Liftmaster and I let them know what solved the problem. Hopefully it solves alot of other peoples issues. It was an irritating problem for me for a few weeks.

Pinoytek avatar
5 years ago #7
Pinoytek
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Here is my two cents worth of thought on LED bulbs interfering with remote controlled devices. The LEDs that are used as indicators in many electronics devices are different from the LEDs that are used in Remote controllers for electronic devices, in that they emit a different light spectrum. The LEDs in the former is in the visible spectrum while the latter is in the infrared spectrum. The eye installed in the controlled device, that receives the control signals from remote controllers are only sensitive to the infrared spectrum. So I really doubt that ordinary visible light LEDs can interfere with remote controlled devices using the infrared spectrum.

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Garagerepairguy avatar
5 years ago #8
Garagerepairguy
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I bet. At least you figured it out!

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5 years ago #9
Garagerepairguy
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The only thing here that baffles me is in garage door openers they actually use a radio frequency. That is how the opener can open the garage door with the door closed from down the street. The LED interference is a curious issue indeed!

Pinoytek avatar
5 years ago #10
Pinoytek
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A TV remote control actually creates an RF output which is in the Khz range. This is verifiable by pressing any button and aiming it very close to an AM radio. But still the frequency is in Khz and the remote control for the GDO is way up the MHZ range. Yes, I agree with you that a possibity of LED interference with the RF operated remote control is minimal if not nil.

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4 years ago #11
Garage master
Guest

I just fixed my garage door opener by removing the led light. I was stuck a few feet from the motor, now I am back to 400 feet away and can open the door.
You can also kill the breaker for a few minutes then turn it back on.

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4 years ago #12
Bernard Glassman
Guest

Last night, for the first time ever, neither my wife's nor my remote would operate either of our LiftMasters from more than about 4 feet away. I called the garage door people and scheduled a visit for noon today. I left early and had the same problem, but when I got home at about 11, it worked just fine. Mysterious! But I canceled the garage door guy. (If it ain't acting broke, don't pay someone to try to fix it.)

Tonight, as I drove up to the house, the problem had returned. I was about to reschedule the garage door guy, but I decided to Google the problem first. So I found this thread, and remembered that yesterday I had our landscape lighting guy install some new outdoor lighting --LEDs! I ran out into the rain and went to the transformer where the LEDs are powered. Turned off the outdoor lighting. I was a good 200 feet from the garage door, but I had the remote in my pocket, so I thought, what the heck?

Both doors now worked like charms. Both remotes worked like charms. I will admit I don't know the physics, but the empirical evidence is indisputable: Turn on the LEDs and the garage door remote is worthless. Turn them off, and everything works as before. 👍

Since I'm not a physicist, nor much of an engineer, both of whom would doubtless know better, I'm guessing the issue has to do with some sort of interference in the electric current rather than RF, but I need to see what kind of RF my outdoor LEDs are producing. Note: There is no remote associated with the outdoor (landscape) lighting.

As I learn more, I'll report it here. Thanks so much for the tip. Now, let's see if we can come up with a solution that doesn't require me to replace LEDs with incandescents.

In the meantime, take a look at this discussion: http://bit.ly/10AHGfB . 90% of it is over my head (which is, I suppose, appropriate for a conversation about garage door openers.) No guaranteed solutions, but some leads. The current best option would appear to be separate circuits for the door and the lights, but I have no idea what it would cost.

BG

PS One addition. There is a device called Tap2Pass that receives a Bluetooth signal from your smartphone and activates your LiftMaster. I absolutely intend to investigate this and see if provides a reasonably priced workaround. If so, they stand to make some serious money. I can only begin to imagine the size of the market in a few years as everyone installs LEDs. (FWIW, I have no financial interest in any vendor, but I have a heck of a financial interest in my openers and my outdoor lighting.)

PPS The answer may be a ferrite choke core from Radio Shack (~ $7) I don't recall reading whether any of you (above) have tried it. I'm picking a few up today. I'll start by attaching one to the antennas on the LiftMasters, then on the power wires entering the LiftMasters. Stay tuned to this station for further information.

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4 years ago #13
dantut
Guest

Glad you found this online before calling the repair guy again.

I wasnt going to call a repair guy for my issue. I decided to buy a NEW unit & solve the problem myself. I was confused when the NEW unit wasnt working either. (because I also moved the bulb over) It took a few days of pondering the issue & parking outside before trying the LED bulb removal.

This is a great site & I use it frequently for other issues.

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4 years ago #14
Lindsay
Guest

U r brilliant! I have been in my garage for 2 hours eating every you tube video and posts everywhere. I was about to give up until I read yours and remembered my husband had changed the light bulbs recently to led lights. Thank you!

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4 years ago #15
Pie
Guest

Awesome fix. Overhead Door Co. came out twice and replaced the receiver card in both of my openers without success, and this fixed it. THANK YOU SO MUCH!!!!

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4 years ago #16
Mason
Guest

I had the same problem, I had led lights removed the led light bulbs from the lift master motor and the garage door opener key pad began to work properly and remotes where working properly as well, thanks for the help!!

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4 years ago #17
very pushy
Guest

Hi. I have been reading this thread with interest. My GDO stopped listening to my remote once I backed out of the garage. Changed batteries... no diff. Tried another remote... no diff. Unscrewed all my LED bulbs... no diff. Found that after between 2 and 20 clicks it would eventually work. Tried a ferite core around the power cable to the opener... no diff. Threaded the antena wire through the core... Bingo... worked like a champ. Tried it with both remotes about 5 times. Success. I started to walk into the house when POOF. Big poof noise, and all of the smoke came out of the opener. Everyone knows that once you let the smoke out... electronic stuff doesn't work anymore. So came upstairs, wrote this report, and will now look to buy a new opener.

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4 years ago #18
UTGuest
Guest

Thanks you all for the hint. 👍
My two identical GDOs (LiftMaster model 3585P) had the same symptom for about a year, but it did not happen all the time until the last couple days, the GDOs did not respond my two remotes at all, unless I brought the remote within a foot close to the antenna wire.
I tried the same thing others did, reprogrammed the remotes, replaced the battery, moved away my garden LED lights...nothing work.
It took me awhile to locate the source of the problem. I found a LED night light, upstairs above the garage, was plugged in the outlet that wired to the same electrical circuit with the GDO.
I unplugged it, went to the garage and tried the remotes, woohoo....both of the GDOs worked fine.
Thanks again guy.
Have a Merry Christmas and Happy New Year.

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4 years ago #19
**** Off GDO Owner
Guest

Hey everyone, I have a LiftMaster 3280M, everything has been working perfectly for 5+ years, several car HomeLinks, both remotes, and keypad...all of the sudden recently the keypad lost its synch/code so we had to reset that then about a month later both car homelinks stopped working, and now both remotes only work when you are standing directly under the GDO, when we hit the learn button we cant even program the KeyPad located right outside the garage door...I have reset the power circuit and have no LED's anywhere near the garage or plugged into any circuit near it....

I'm about to take a baseball bat to the opener as my only resolution...

Any Suggestions?

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4 years ago #20
Dan
Guest

Most Christmas lights are LED. Although mine do not interfere with them.

How about different times of the day? Does it work during the day?

When I called tech support they had me turn off most of the other circuit breakers in the house. That seemed a little drastic, but I did it.

I had an LED bulb in the opener unit so when I came home at the end of the day it would operate correctly. But not in the morning when I left for work.

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4 years ago #21
**** off GDO Owner
Guest

Nope, it doesn't work at all times of the day and no xmas lights plugged in anywhere near it or on the same circuit... Called a local GDO service company, they said it could be the circuit board, so it's going to cost me either $120 if the GDO tech can figure it out, $195 to replace the circuit board, or $400 for a whole new system.

dantut avatar
4 years ago #22
dantut
Junior Member
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Here is a link to another solution: http://www.diyforums.net/craftsman-garage-door-opener-remote-not-working-62035.html#103166

I am not sure what they are doing by tuning the capacitor. Maybe google that issue.

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4 years ago #23
Mickey
Guest

I also have a LiftMaster 3280M garage door opener that was installed last January, 2013. The button in the car has worked great from 30 feet down the driveway. All of a sudden on December 4 the car button and the remote opener stopped working. The keypad on the outside and the big button in the garage still worked. Then 2 days later it started working great like before. This morning the car button and remote stopped working again but the keypad on the outside and the big button in the garage still worked. Since the opened was under warranty the company came out and changed the board inside and the remote and it still didn't fix the problem. I do not have any LED lights on near the garage. The technician said there is RF interference. He is coming back next week with a stronger transmitter. Any other suggestions?

Since Dec 22 the key pad on the outside will only work after the button for the garage door is pressed to open it. When I come back home the key pad will not work at all. I am still waiting for the opener company to come back with a different part. Very frustrating.

I have NO LED lights anywhere. I even asked the neighbor if they had done anything different with their internet or changed a bulb. They did not.

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4 years ago #24
UTGuest
Guest

The problem with my GDOs happened mostly at night time when the LED night light was on. But occasionally during the summer, day time, the remotes did not work either. It was intermittent and I thought the board that was going bad.
Do you have any other electrical tool/charger that may have LED built-in? security system with LED light/sensors? plugging in the garage outlet or same circuit? May take a little more time so be patient guy.

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4 years ago #25
Mickey
Guest

See above. There is no rhyme or reason for this unit not to work.

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4 years ago #26
Amma
Guest

I Had the same problem. My walkie talkies were located in room above garage, moved walkie talkies to another room problem solved. RF from walkie talkie was interfering with garage door frequency.

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4 years ago #27
CFS
Guest

Remote controls (except for TV) are RF not IR and LED light bulbs (120 volt) have to use switching power supply to reduce the voltage and rectify it for the LED to work. Switching power supplies create RF interference. LEDs require ~2.0 to 3.2 volts DC!

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4 years ago #28
Mickey
Guest

I talked to the AT&T repair guy and he told me to unplug the wi-fi from electric and computer. I turned off and unplugged the computer and the wireless phone base from everything. Then I relearned my car and the remote to the garage door opener. They both worked. I plugged the wireless phone base in and the opener still worked. I plugged and turned on the computer and wi-fi and the openers did not work. So it definitely had something to do with switching the phone line from copper to digital to speed up our internet.

As I was up on the ladder looking at the opener in the garage I decided to move the plug from the opener to the other outlet in that box in the garage ceiling. VIOLA!!! The openers worked. It turns out that the plug the opener was plugged into had reverse polarity happen to it. Don't understand how but that was the solution. Everything works now.

When in doubt try another outlet.

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4 years ago #29
Mickey
Guest

Well good things come to an end. The opener stopped working again. I called Liftmaster support and they sent me a antenna extension. I have not installed it yet because they forgot the antenna part. I got the "L" bracket and the coaxial cable. The company now makes an opener with 3 frequencies that you can switch between so my unit is old technology.

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3 years ago #30
michael
Guest

I installed 2 led light bulbs into the overhead on my liftmaster garage system.

And then I noticed when I back up my car to the driveway and try to close the garage door using the remote, it won't work unless I hold the remote outside my window close to the garage.

So it was the led bulbs that caused the problem.

I am back to cfls in the garage.

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