Liftmaster 3800 Is Great!!!

[sixty4]

I just changed out my garage doors. I went with 3 lift master 3800's. They are quiet seem to work really well. High praise to liftmaster! If you purchase one you will not regret it! Shop around a bit because the prices will vary.
Just my 2 cents....
Sixty4: beer:

[ksp]

Like mine also. Time will tell if they are durable but for now, it's wonderful.

[ovilla]

I replaced a craftsman model with a LM 3800 and it has held up quite well to our Chicago winter. I really like the battery back up and the deadbolt feature. Honestly, this has got to be the best opener I have ever used. Talk about quiet, it's no louder than the sound made my manually opening your door. Anyway, I'm going to get another one for my other bay soon.

[bmwpower]

Share the wealth....where'd you get yours and what price?

[ksp]

Bought mine from a dealer on eBay,,,,paid like $350 for it.

[ovilla]

Bought it from a friend's dad who is in the garage door install business. LM3800 with two extra remotes, 10-key pad, and battery pack (in case the power goes out) for $350. I shopped around locally, since I do live in Chicago and thought that there should be a local shop that will just sell me the unit itself. Most said that they weren't allowed to sell me the unit, and that they would have to do the install too (total BS). Others would sell the basic LM3800 for $400-$450, but not include the 10-key pad or battery pack. Anyway, check ebay. I saw a lot of brand new basic units for a little over $300.

[will02]

I have 3 12x12 doors in my shop and used the LM3800's on all three. Work like a champ for now, hopefully time will tell me I made a great choice. Allso have the battery backup on the most used one, had to use it once when the electric failed during a storm last summer. Paid $380 apiece from the local guy installed with key pad on main door.

[sreno155]

I just purchased an LM3800 on EBay for $330; thats including shipping. I plan to install the opener myself. I went through some great reviews out of Amazon to make my decision. http://www.amazon.com/LiftMaster-3800-Mounted-Residential-Jackshaft/dp/B000MT7WV4
I am going to replace an older Sears/LM chain drive unit that has the red learn button. I am having the same problem with this unit that I had with a similar unit at my old house. The remote controls would eventually stop working at any distance (especially when it gets cold). On the previous house I ordered and replaced the electronics panel on the Sears opener and that seemed to help the problem. We sold the house not too long after that, so not sure if it was a lasting fix. So now we move into the new house and it has the same style of Sears/LM opener and the same problem. Talking to a guy who sells garage door parts on ebay, claims that the electronics panel is bad and to replace it.
The heck with that, I did some research and from a lot of postings here on the garage forum and in other blogs, everyone is impressed with the LM3800 jackshaft opener.
Will let you all know how the install goes.

[nonhog]

I just changed out my garage doors. I went with 3 lift master 3800's. They are quiet seem to work really well. High praise to liftmaster! If you purchase one you will not regret it! Shop around a bit because the prices will vary.
Just my 2 cents....
Sixty4: beer:

Yup shop around 20 miles apart 195$ differance :shocking:
490 vs. 295 . I said are you sure ?! Time will tell, the guy seemed to know his stuff.

[wjhpc]

I have had mixed results with the LM 3800. My garage has 4 doors, respective widths are 18', 9', 20' and 20'. All doors have rusted sheet metal screwed to the outside of the door. this is a common design treatment on high end residences in the southwest. This also makes the doors quite heavy. When the hot sun strikes the doors, they curve a bit as a result of the temperature change. This makes the doors drag a bit tighter on the rubber perimeter seals. the 3800 has fussy electric limiters that stop the door when the motor senses any obstruction (child's foot, etc). these motors sensed the rubber drag of the seals and the two 20' doors could not be adjusted by the distributer to avoid the problem. we ended up installing commercial, heavy duty lift motors without the goofy sensors on the bigger doors and kept the 3800 for the 2 smaller doors. Unique situation here in the southwest with metal doors and hot sun, but information is power......

[nova65ss]

I have had mixed results with the LM 3800. My garage has 4 doors, respective widths are 18', 9', 20' and 20'. All doors have rusted sheet metal screwed to the outside of the door. this is a common design treatment on high end residences in the southwest. This also makes the doors quite heavy. When the hot sun strikes the doors, they curve a bit as a result of the temperature change. This makes the doors drag a bit tighter on the rubber perimeter seals. the 3800 has fussy electric limiters that stop the door when the motor senses any obstruction (child's foot, etc). these motors sensed the rubber drag of the seals and the two 20' doors could not be adjusted by the distributer to avoid the problem. we ended up installing commercial, heavy duty lift motors without the goofy sensors on the bigger doors and kept the 3800 for the 2 smaller doors. Unique situation here in the southwest with metal doors and hot sun, but information is power......

How tall are the 20' wide doors? It says in the owners manual only up to 18' wide. If they are dragging enough to stop the motor it probably could of been adjusted. 9 times out of 10 when you see an opener not working properly or reversing it is actually not the opener but the door.

[wjhpc]

How tall are the 20' wide doors? It says in the owners manual only up to 18' wide. If they are dragging enough to stop the motor it probably could of been adjusted. 9 times out of 10 when you see an opener not working properly or reversing it is actually not the opener but the door.
It is both a door and opener issue and how they relate. the door is 8' high and, as i said, has some camber when the temp soars in direct sunlight. It loses the camber when temps drop. the high temp condtion in direct sun causes the door to press up against the rubber harder. The 3800 motor has an automatic cut-off when it senses obstruction (safety feature) and it is reading the extra drag as obstruction. Can't be adjusted enuf to deal with the condition, so I got beefy commercial motors that you could pull an engine out of a car with, so to speak. Problem solved, just an FYI about the unusual motor cut-off feature of the 3800.

[nova65ss]

Problem solved, just an FYI about the unusual motor cut-off feature of the 3800.



Nothing really unusual about the safety mechanism all openers have the same feature. I was referring to adjusting the doors away from the house so they will not rub as much. If they are rubbing enough to make the 3800 stop it is not good for the motor or any motor for that matter. The commercial units have the same safety feature only you can adjust it higher to compensate, but then you run the risk of it not stopping on an actual obstruction. Sounds like you got your problem solved but I was just adding it not to be the openers fault but the installation of the doors.