When the opener won't cooperate
A garage door opener is a surprisingly complex machine: a motor, a drive system of gears and a chain, belt or screw, a trolley, a logic board, a radio receiver, wall controls, remotes, keypads and safety sensors. When any of these parts fails, the door stops working the way it should. Sometimes it won't move at all; sometimes it only goes partway, reverses, makes noise or responds inconsistently.
New Berlin Garage Doors repairs garage door openers of all major brands. Our technicians diagnose the problem quickly, explain what's wrong and give you a written price before any work. Many opener repairs are completed on the first visit with parts from our trucks.
Common opener problems we fix
Door reverses or won't close
The photo-eye safety sensors near the floor must "see" each other for the door to close. Dirty lenses, sensors knocked out of alignment, loose wiring or direct sunlight can all trigger a reversal. Incorrect close-force or travel limits can also cause the door to reverse at the bottom.
Motor hums, but the door doesn't move
Often caused by a broken spring, which makes the door too heavy to lift, a stripped drive gear, a disengaged trolley, or a failed start capacitor. Continuing to press the button can damage the motor, so stop and call.
Door opens partway and stops
Travel limits may be set incorrectly, or the door may be binding due to track, roller or spring problems, causing the opener's force sensing to stop it.
Remotes or keypad don't work
Beyond dead batteries, remotes can lose programming, the lock feature may be engaged, or the opener's receiver or antenna may be damaged. Older openers may not be compatible with newer remotes.
Noisy operation
Grinding, rattling or banging can come from a loose chain, worn gears, a worn trolley, loose mounting hardware or problems with the door itself.
Opener runs by itself or not at all
Random operation can be caused by a stuck wall button, a faulty remote or interference. An opener that's completely dead may have a power problem, a tripped breaker or GFCI outlet, or a failed logic board.
Quick checks before you call: make sure the opener is plugged in and the outlet has power, including any tripped GFCI outlet or breaker; check that the lock or vacation mode isn't on; wipe the sensor lenses and check their indicator lights; and replace remote batteries. If none of that helps, call (262) 555-0172.
Our opener repair process
- Check the door. Many "opener problems" are really door problems. We first check spring balance, cables, rollers and track.
- Diagnose the opener. We test the motor, drive system, logic board, sensors, controls and error codes.
- Written price. We explain the problem and give you a price, along with an honest comparison to replacement if the opener is old.
- Repair. We replace gears, sprockets, belts, chains, trolleys, sensors, boards, capacitors, wall controls or remotes as needed.
- Adjust and test. Travel and force limits are set, sensors aligned, and the auto-reverse tested.
Repair or replace your opener?
| Situation | Usually |
|---|---|
| Sensor misalignment, remote programming, worn gear or trolley | Repair |
| Reasonably modern opener with a failed board or motor part | Repair, if parts are available |
| Very old opener without safety sensors or rolling-code security | Replace |
| Expensive repair on an older unit nearing end of life | Replace |
| Want quieter operation, smart features or battery backup | Replace |
We'll never push a replacement if a fair-priced repair makes sense. If replacement is the better value, see our opener installation page.
Opener problems in cold weather
New Berlin winters bring their own opener issues. Cold thickens lubricants, making the door harder to move and triggering force-sensing reversals. Frozen bottom seals can stick the door to the floor; if the opener pulls against it, gears and trolleys can be damaged. Snow and ice can block or misalign sensors. A fall tune-up with a cold-weather lubricant and proper force settings helps prevent winter opener failures. If the door is frozen to the floor, don't keep pressing the button; free it gently first.
Brands we service
We repair Chamberlain, LiftMaster, Genie, Craftsman, Linear, Overhead Door, Marantec, Sommer and other brands. Our trucks carry common gears, sensors, remotes, keypads and boards for popular models, so many repairs are done on the spot. For less common parts, we'll order and return promptly.
Understanding error codes and flashing lights
Many modern openers communicate problems through blinking lights on the motor unit, the wall control or the sensors. A certain number of flashes can indicate a sensor issue, a wiring problem, a travel limit fault or a motor problem. Some newer models even report issues through their smartphone app. The meanings differ by brand and model, so the owner's manual is the best reference. When we arrive, we read these codes alongside our own tests, which often points straight to the fault and saves diagnostic time.
Safety sensor problems explained
Safety sensor issues are among the most common opener calls we get, and they're often simple to fix. The two sensors sit a few inches above the floor on either side of the door. One sends an invisible infrared beam, and the other receives it. If anything interrupts the beam, the door won't close or will reverse.
- Misalignment: a bump from a bin, a shovel or a car can knock a sensor slightly out of line. The indicator light usually goes out or blinks.
- Dirty lenses: dust, cobwebs and road spray can block the beam. Wipe them with a soft cloth.
- Sunlight: low winter sun shining directly into a sensor can blind it at certain times of day. Repositioning or swapping sides often helps.
- Wiring damage: the thin wires running to the sensors can be chewed by mice, pinched by staples or corroded by moisture.
- Snow and ice: drifting snow near the door can block the beam entirely.
Never bypass or disconnect the sensors to get the door to close. They're an essential safety feature, and we'll repair or replace them properly.
Gears, sprockets and trolleys
Inside many chain- and belt-drive openers, a plastic drive gear and sprocket assembly transfers power from the motor to the chain or belt. These gears are designed as a weak point that wears before the motor does. After years of use, especially if the door has been heavy or unbalanced, the teeth strip and the motor runs without moving the door. Replacing the gear assembly is a common, cost-effective repair. The trolley that connects the rail to the door arm can also wear or crack, and we carry replacements for popular models.
Logic boards and power surges
The logic board is the opener's control center. Lightning storms and power surges, common during summer weather in southeast Wisconsin, can damage it, leaving the opener dead or erratic. Boards can be replaced on many models. If the opener is older and a new board is expensive or no longer available, replacing the opener may be the better value. Plugging the opener into a surge protector rated for motor loads can help protect the new board.
Preventing opener problems
- Keep the door balanced and well-maintained; a heavy door is the top cause of opener wear.
- Test the auto-reverse once a month using a roll of paper towels under the door.
- Keep sensors clean and the area in front of them clear.
- Replace remote batteries at least yearly, especially before winter.
- Schedule an annual tune-up for both door and opener.
What opener repair typically costs
Opener repair costs vary with the part involved. Realigning sensors, reprogramming remotes or adjusting travel and force settings are small jobs. Replacing a drive gear, trolley, sensor pair or wall control is moderate. Logic boards and motors cost more, and on older openers that's where replacement often becomes the smarter choice. Whatever the issue, your technician explains the options and gives you a written price before any work begins, so you can decide between repair and replacement with the full picture in front of you.
We'll also check the door itself on every opener call. Fixing an opener while leaving a broken spring or a binding roller in place only sets the new parts up to fail, so if the door needs attention, we'll show you why and include it as a separate line on your quote.
Opener acting up? Call (262) 555-0172 or use the form above for same day opener repair in New Berlin, Brookfield, Elm Grove, Muskego, Waukesha, West Allis and nearby communities.