Liftmaster 3850 Garage Door Opener

Model No: Liftmaster 3850


Availability: 3rd Party Comparable Item
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Liftmaster 3850

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Comparable Item:
Chamberlain WD962KD

Extended Description:

The Liftmaster 3850 garage door opener features the ruggedness of a chain drive and the quietness of a jackshaft. The motor is 12 volts DC for heavy duty work. The Liftmaster 3850 includes the 485LM Evercharge Battery Backup, making sure that your garage door will open, even when the power is out.

The two lights on this model 3850 will keep your garage well lit. The Liftmaster 3850 also matched other AC openers in terms of speed while keeping the ruggedness of a DC opener.

This opener includes a 78LM control panel and a 373LM remote control. This allows you to open and close your garage door and lights from inside of your garage.

This model includes the protector system which can reverse the garage door should anything come across the path of the garage door. This motor can also automatically detect a break in the spring to keep the door from falling. The Liftmaster 3850 also has a emergency release handle which allows you to open or close your door in case of a power failure.

This opener uses Liftmaster’s newest 315 MHz Security+ System, ensuring that your garage is protected from code-grabbing thieves and radio interference.

Liftmaster 3850 Compatablility

The Liftmaster 3850 comes in several configurations. All orders placed through TD Supplies will come with Liftmaster's highest security Security+ 315 MHz ERT format. This format supports 373LM remotes and their equivalent. However, if this opener was purchased before 2005 or from a different seller, it may support a different type of remote. The most reliable way to determine compatability is to find the square "learn button" on the back of the opener.

If you have a purple learn button (Security Plus ERT series):

If you have a red learn button (security plus series):

If you have a green learn button (Rolling Code series):

This opener is also compatable with the 41C4220A Gear and Sprocket kit.

Our other popular garage door openers include:

We keep a large stock of all major brands of garage and gate products from all of the leading manufacturers. However, if you cannot find the door product that you are looking for, let us know at and we will try our best to special order it for you. If you have questions about how to find the correct garage transmitter or part, we have a helpful Frequently Asked Question's page as well as free technical support on all products that we carry. We also have a growing collection of articles with safety information, helpful guides, and product information available in our Helpful Articles Section.

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