Opener Repair
Motor issues, remote problems, sensor alignment, circuit board repair. We diagnose and fix all opener problems.
An opener diagnostic is $199, a logic board is $225 labor plus the board, and a new LiftMaster opener is $913 installed for the 2220L or $1,019 for the 2420L with battery backup. Factory authorized LiftMaster service, same day opener repair, and Chamberlain, Genie and the other major brands too.


Motor issues, remote problems, sensor alignment, circuit board repair. We diagnose and fix all opener problems.
Upgrade to a LiftMaster smart opener with WiFi, myQ app control, battery backup, and built-in camera.
When repair is not cost-effective, we provide professional replacement with top-rated LiftMaster openers.
Serving South Florida since 2021 with thousands of completed projects.
Fully licensed, bonded, and insured for your complete protection.
Honest, transparent pricing with no hidden fees or surprise charges.
If the same problem we repaired comes back within 30 days, we come back and fix it, and the return visit is free: no charge for the trip and no charge for the labor. Parts we install carry the manufacturer's warranty.
It does not cover damage, abuse, accidents, storms or impact, or a different problem in parts we did not work on. After the 30 days, our one year labor warranty on our workmanship still applies.
How it fits with our one year labor warranty · Read it in the FAQ
CMC Door Service is a factory-authorized LiftMaster dealer. We install, repair, and service every current residential and light-commercial model. Here are the top LiftMaster openers we fit to South Florida homes:

The Basic Series chain drives. Both run a 3/4 HPS DC motor with the camera and Wi-Fi built into the unit, so myQ works without a hub. The 2220L is $913 installed; the 2420L adds battery backup for $1,019, which is the one to have in a county that loses power every storm season.
The quiet ones, for a garage under a bedroom or attached to the house. The 6580L is a 1 HPS Plus Series belt drive with battery backup, a 360 camera and dual LED lighting with motion detection, $1,064 installed. The 6690L is the Premium Series 1-1/4 HPS belt drive with ring LED for a wide or insulated door, $1,334 installed.
The 6690L's chain-drive twin on an I-beam rail: heavy-duty DC motor, 360 camera, ring LED and battery backup. The pick for the hardest working door, or a detached garage where nobody hears it.
Mounted on the wall beside the torsion shaft instead of on a rail overhead, so the ceiling stays free for storage or a car lift. The 98022 is rated for doors up to 850 lb, $1,619 installed; the 98032 heavy-duty version covers doors from 400 to 1,100 lb, $2,279 installed. Both carry battery backup and built-in Wi-Fi. Not sure which LiftMaster fits your door? Call (786) 315-9238 or request a free estimate and we will match you with the right motor based on your door weight, garage ceiling height, and how smart you want the system to be.
Jackshafts, trolleys and hoists for storefronts, rolling steel, grilles and sectional doors, sized by how many times a day the door runs. LiftMaster from the $2,150 LJ8900W light-duty jackshaft up to the gear-head hoists; Manaras OMH, OPH, OSH and OGH from $2,550 to $3,200 installed.
The right motor depends on the door, not the brand. Pick the one closest to yours.
Belt drive. It runs markedly quieter than chain, and battery backup means it still opens in an outage.
Chain drive. Costs less, shrugs off heat and neglect, and noise does not matter out there. Take the battery version.
Wall mount on the torsion shaft. No rail overhead, and the 98032 is rated for doors up to 1,100 lb, where most impact doors land.
Sized by how many times a day it runs. A few dozen cycles is a light jackshaft or medium trolley; all day is a Maxum or Logic unit.
LiftMaster
LJ8900W light-duty jackshaft
From $2,150 installed
Photos and details →
LiftMaster
Medium-duty trolley (MT)
From $2,350 installed
Photos and details →
LiftMaster
Maxum TDC trolley
From $3,155 installed
Photos and details →
LiftMaster
Logic 5.0 trolley (T series)
From $3,700 installed
Photos and details →
A jackshaft or hoist on the barrel shaft, with a chain so the door still opens by hand in a power cut. Manaras and LiftMaster both, in every voltage a Miami building has.
Industrial duty with gear reduction. These are built for hundreds of cycles a day and take loop detectors, card readers and a fire door release.
Not sure? Call with the door size and how many times a day it runs. (786) 315-9238
One press of the wall button, a clean start, and a door that runs the length of the rail without hunting or reversing. Filmed on one of our own jobs.
Every photo in this section is our own work across Miami-Dade, Broward and Monroe County.
The doors, finishes and hardware we fit across South Florida.
What a proper installation and service visit actually involves, step by step.
The most common causes are a misaligned or blocked photo-eye safety sensor, a failed capacitor or logic board, stripped drive gears, or travel limits that have drifted out of adjustment. A blinking motor-unit light usually points at the safety sensors.
If the unit is under roughly ten years old and the fault is a single component, repair is usually the better value. Opener repair is quoted after diagnosis, because the price follows the part that failed. Older units without rolling-code security or a battery backup are often worth replacing outright.
We are an authorized LiftMaster dealer and fit the full range: chain drive, belt drive, wall-mount jackshaft, and models with battery backup, built-in camera and LED lighting.
Yes. We set up myQ on install, so you can open, close and monitor the door from your phone and get alerts if it is left open. Security+ 2.0 rolling code is standard.
It is worth having. A battery backup keeps the door working through a power cut, which matters in storm season when a garage may be the only way in or out.
Yes, and it is finished before the technician leaves. That means the opener paired to the myQ app if the unit supports it, the wall keypad set to a code you pick, every remote you own programmed, and the HomeLink button in your car synced to the new opener. The car is the one people forget about until a week later, so leave it in the driveway on the day and it gets done with everything else.
HomeLink stores the old opener's code, so it has to be cleared and taught the new one, and on a Security+ 2.0 unit that means holding the learn button on the opener while the car relearns. Some model years also need the car's system erased first, which is done from the car and not from the opener. If yours did not get done on the day, call (786) 315-9238 and we will talk you through it or come back and do it. There is no charge for that.
Physically, mostly. Almost any residential opener will bolt to almost any sectional door, because the header bracket and the door arm are close to standard. Practically, no. The rail length has to match the door height, so a 7 foot door takes the standard rail and an 8 foot door needs an extension kit. The horsepower has to match the door weight, which is why a solid wood or an impact rated door wants more than the cheapest half horsepower unit. And if you have low headroom a rail unit will not fit at all, and the answer is a wall mount jackshaft. Tell us the door height, the material and how much room you have above the door and we will tell you what fits.
The phrase almost always means a universal remote or keypad rather than a universal motor, and it means the handset can learn the code from more than one manufacturer. Whether it will actually work on yours comes down to the security protocol, and on a LiftMaster or Chamberlain the learn button on the motor unit tells you which one you have. Green is Billion Code. Purple is Security+ at 315 MHz. Red or orange is Security+ at 390 MHz. Yellow is Security+ 2.0. Match the handset to that color and it pairs. Buy the wrong one and it will not, no matter how many times you press it.
No, though many are cross compatible. A remote has to match both the radio frequency and the rolling code system your opener uses. On LiftMaster and Chamberlain the learn button color on the motor unit tells you which: green, purple, red and orange are the older Security+ generations, and yellow is Security+ 2.0. Genie uses its own Intellicode system and is not interchangeable with either. Read us the model number off the label on the side of the motor unit and we will tell you which remotes work. We keep the common ones on the van.
Yes, and it takes minutes. Every remote, keypad and car button is stored in the opener's memory and can be erased and taught again from the learn button on the motor unit. Two occasions are worth doing it. When you buy a house, because you have no idea how many remotes the previous owner handed out, and when a remote goes missing. Holding the learn button for about six seconds, until the LED beside it goes out, wipes every code in the unit, and then you pair back only the handsets you actually have. If yours is mounted too high to reach comfortably, call (786) 315-9238 and we will do it.
It depends how old the opener is. A fixed code remote, the kind with a row of small dip switches inside the battery cover, sends the same code every time, and that can be copied with a cheap cloner or captured and replayed. Anything with rolling code, meaning Security+, Security+ 2.0 or Genie Intellicode, generates a new code on every press, so a captured signal is already dead by the time anyone tries to use it. If you open your remote and find dip switches, the opener is old enough that replacing it buys real security rather than just convenience.
It is the backup battery, and the pattern tells you what it wants. On a LiftMaster, a beep roughly every two seconds with a steady orange LED means the mains power is out and the opener is running on the battery, which is the battery doing its job rather than a fault. A beep every thirty seconds with a flashing orange LED means the battery is low. A beep every thirty seconds with a steady red LED means the battery will no longer hold a charge and needs replacing. Backup batteries last a couple of years in this climate. Some openers also beep and flash before closing on a timer or from the app, and that warning is normal.
Tesla uses HomeLink, the same in car system Ford, BMW and most other manufacturers fit, so it talks to the opener directly rather than through an app, and it works with essentially any modern opener. Two things trip people up. On some Model 3 and Model Y cars HomeLink is an optional module rather than fitted at the factory, so check whether yours has it. And on a Security+ 2.0 opener, teaching the car is a two part job: the car learns the signal first, then somebody presses the learn button on the motor unit while the car sends. That second step is the one that gets skipped. We do it on the day if the car is in the driveway.
Not natively, and that is the honest answer rather than the one we would like to give. LiftMaster and Chamberlain openers use myQ, which integrates with Amazon and Google but has never been a native HomeKit accessory. If HomeKit is how your house runs, the usual route is a separate controller wired alongside the opener rather than an opener that speaks HomeKit itself. Tell us before we install and we will leave the wiring and the wall space for it, rather than you finding the gap afterwards.
A standard chain or belt drive rail unit is the most forgiving, and a wall mount jackshaft is the least, even though it looks simpler, because it needs the right torsion bar, a cable tension monitor and a properly balanced door. That last point is the one that matters. The opener does not lift the door, the springs do. The opener only nudges a balanced door along. Fit a new opener to a door that is out of balance and the motor spends its life fighting the spring and burns out early, which accounts for a fair share of the openers we replace. The other half of the job is the safety setup: the up and down travel limits, the force settings and the photo eyes, which are what stop the door on a child. If you are fitting one yourself, get the door balanced first and set the safety gear properly.
Worth knowing first that Chamberlain and LiftMaster are the same manufacturer. Chamberlain Group builds both: Chamberlain is the line sold in the big box stores, LiftMaster is the professional line sold through dealers, with heavier gearing on the comparable models and a warranty and parts supply that run through the dealer. Genie is a separate manufacturer. We do not publish a price for a box off a shelf, because the number that decides your cost is the installed one, and that depends on your door height and weight, your headroom, whether the existing wiring and wall control stay, and whether the door needs balancing before anything is bolted to it. The estimate is free and the price is fixed before work starts. Call (786) 315-9238.
Genie makes a decent opener and we service them. The praise in reviews is usually the price and how quiet the belt drive units are. The recurring criticism is the plastic drive components on the entry level models, and how long parts take to arrive when something does fail. We fit LiftMaster because we are an authorized dealer for it, which means the parts are on the van rather than on order, and that is the difference you feel on the day something breaks rather than the day it goes in. If you already have a Genie we will repair it rather than push you into replacing it.
Call now or request a free estimate online. Same-day service available across Miami-Dade, Broward and Monroe County.