Posted: 11/5/2012 10:09:08 AM EDT
| One of the garage door openers in my building will not open with the remote. Unit is a Liftmaster 5011. The receiver will work on the other opener in the building. If I hold the remote next to the antenna it will work also. Changed the battery in the remote. Anyone here work on these things. Thanks, Mike |
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http://www.amazon.com/Liftmaster-41A3504-Residential-Antenna-Extension/dp/B004K2YH4E/ref=sr_1_1?ie=UTF8&qid=1352310678&sr=8-1&keywords=liftmaster+garage+door+range+extender Remotes are cheap. Try a new one first. Yours may be a bit off. I think liftmaster has a tech support line too, but I would just go with a new remote. |
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Quoted: http://www.amazon.com/Liftmaster-41A3504-Residential-Antenna-Extension/dp/B004K2YH4E/ref=sr_1_1?ie=UTF8&qid=1352310678&sr=8-1&keywords=liftmaster+garage+door+range+extender Remotes are cheap. Try a new one first. Yours may be a bit off. I think liftmaster has a tech support line too, but I would just go with a new remote. He said the remote works fine with other units. I'm tagging this, because one of my openers has the same problem. Takes several tries to get it to open sometimes, and I've tried different remotes. It has a wire antenna hanging from it. I just tied a piece of wire onto the end of it to make it longer, and it helped a little, but it's still not very good. |
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If you have two receivers in the same garage close to each other on the same frequency, one of them will block out the other one.
ETA: To get the remotes to work use a two channel receiver and run one of the out puts over to the other operator. Are these Jack Shaft mounts? |
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Quoted:
Quoted:
http://www.amazon.com/Liftmaster-41A3504-Residential-Antenna-Extension/dp/B004K2YH4E/ref=sr_1_1?ie=UTF8&qid=1352310678&sr=8-1&keywords=liftmaster+garage+door+range+extender Remotes are cheap. Try a new one first. Yours may be a bit off. I think liftmaster has a tech support line too, but I would just go with a new remote. He said the remote works fine with other units. I'm tagging this, because one of my openers has the same problem. Takes several tries to get it to open sometimes, and I've tried different remotes. It has a wire antenna hanging from it. I just tied a piece of wire onto the end of it to make it longer, and it helped a little, but it's still not very good. Adding to it won't help. Antenna length is a function of the frequency it operates on. Looked it up, they are between 300-400mhz and should use 315mhz for a certain portion of its communication. That corresponds to about a 9" antenna on the receiver. Have you modified this antenna in any way? |
| Check my post above. I serviced garage door and electric gates both residential and commercial for a large company averaging 12 calls a day for over 5 years. I was the guy who was sent out when the first contact repair guy could not figure it out. This is a common problem. |
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Quoted: Check my post above. I serviced garage door and electric gates both residential and commercial for a large company averaging 12 calls a day for over 5 years. I was the guy who was sent out when the first contact repair guy could not figure it out. This is a common problem. I'll have to try that on mine. Never occurred to me that the one that receives fine could be interfering with the one that doesn't. |
| Palm, I have 2 openers in the building. They are about 80' apart. They have worked fine since 2009. The one in the front is the one I'm having problems with. It has started working intermittently. I can take the receiver from the other opener and it doesn't work either. The receiver from the problem unit will work on the other. The manual buttons work fine. These have the Delta 3 receivers. From research on the internet I'm beginning to think I have some type of interference. Mike |