CALL NOW — (888) 670-9331 — WE DIAGNOSE FIRST
MANUAL RELEASE TEST FIRST  ·  All Major Brands  ·  7-Point Verification  ·  Every Repair Guaranteed
Garage Door Opener Repair · Wright, WY

Garage Door Opener Repair in Wright, WY —
We Diagnose First. We Fix Right.

Most opener symptoms are door hardware problems in disguise. Herlihy performs the manual release test first on every call — correctly identifying the actual cause before any component is replaced in Wright.

(888) 670-9331
Tap to call · We answer fast · All major brands
Same-Day Available
Manual Release Test First
All Major Brands
7-Point Verification
Guaranteed
Professional Garage Door Opener Repair

Professional Garage Door Opener Repair in Wright, WY

The opener runs but the door doesn't move in Wright — in most cases the spring has broken and the opener can't lift the door's full weight without spring counterbalancing in Wright, WY. The door reverses before it reaches the floor every time in Wright — in most cases the safety sensor is misaligned and the opener is correctly refusing to close in Wright, WY. The remote produces no response from the opener in Wright — in most cases the remote battery is dead and the wall button works fine in Wright, WY. Replacing the opener for any of these symptoms wastes $300 to $600 and leaves the original problem unchanged in Wright. The manual release test and a correct diagnostic sequence identify the actual cause in minutes in Wright, WY. Call Herlihy Garage Doors now in Wright.

Most garage door opener symptoms are caused by conditions outside the opener itself in Wright, WY. The door hardware is the most common source of symptoms that look like opener failures in Wright. A broken spring that makes the door too heavy for the opener in Wright, WY. A misaligned sensor that the opener correctly interprets as an obstruction in Wright. A worn roller creating enough friction to trigger the force limit in Wright, WY. A disconnected trolley carriage that lets the opener travel the rail without engaging the door in Wright. In every one of these cases, the opener is performing exactly as designed in Wright, WY. The problem is in the door hardware or the connection between the opener and door in Wright. The manual release test — pulling the emergency release cord and manually lifting the door — separates door hardware problems from opener component problems in thirty seconds in Wright, WY.

Herlihy Garage Doors diagnoses opener symptoms by assessing the door hardware first in Wright. Every opener service call begins with the manual release test in Wright, WY. The door hardware is assessed before any opener component is touched in Wright. Where the door hardware is confirmed as functioning correctly, the opener component assessment proceeds through a systematic isolation sequence in Wright, WY. The specific fault is identified, named, and priced before any work begins in Wright. And every opener repair is guaranteed in Wright, WY. We diagnose first. We fix right in Wright.

Why the Opener Is Rarely the Problem When the Door Won't Move in Wright, WY

The garage door opener is designed to provide a small net lifting force against a door that's already counterbalanced by the spring in Wright. When the spring fails and removes the counterbalancing force, the opener is trying to lift 150 to 400 pounds with 10 to 20 pounds of net force in Wright, WY. It can't in Wright. The opener appears to be failing because it runs without moving the door in Wright, WY. It isn't failing in Wright. It's operating correctly under conditions it can't overcome in Wright, WY. The spring is the problem in Wright.

Call Now — (888) 670-9331
Opener Symptom Diagnosis

Opener Symptom Diagnosis — What's Actually Wrong in Wright, WY

Opener Runs, Door Doesn't Move — Start With the Spring in Wright

The opener motor runs and the trolley travels the rail but the door stays stationary in Wright, WY. This is the most commonly misdiagnosed opener symptom in Wright. The manual release test identifies the cause in thirty seconds in Wright, WY. Heavy door that won't hold position means the spring has failed in Wright. Door that lifts easily means the trolley carriage is disconnected — pull it toward the door to re-engage in Wright, WY. Opener confirmed as the actual cause only when both the door hardware and the carriage connection are confirmed as functioning correctly in Wright.

Door Reverses Before Closing — Start With the Sensor in Wright, WY

A door that begins closing and reverses before reaching the floor has a safety system triggering the reversal in Wright. The safety sensor system is the most common cause in Wright, WY. Checking the sensor LED states takes ten seconds in Wright. A blinking receiver LED confirms the beam isn't being correctly received in Wright, WY. A blinking receiver LED confirms the beam isn't being correctly received in Wright, WY. Bracket adjustment test in sixty to ninety seconds distinguishes misalignment from sensor failure in Wright. The down-travel limit set too high is the second most common cause and produces a stop rather than a reversal in Wright, WY.

Remote Not Responding — Start With the Battery in Wright

A garage door that doesn't respond to the remote but responds to the wall button has a remote-specific problem in Wright, WY. A dead remote battery is the most common cause in Wright. Replace the battery before calling for service in Wright, WY. If a new battery doesn't resolve the issue, the remote has lost its programming synchronization with the opener and reprogramming restores function in most cases in Wright. If the door responds to neither remote nor wall button, the opener has a power supply or logic board fault in Wright, WY.

Opener Makes Grinding Sound — Drive Gear or Door Resistance in Wright, WY

Grinding from the opener area has two primary sources in Wright. A worn or stripped drive gear inside the opener produces grinding that originates at the motor unit and is present even when the door moves slowly or not at all in Wright, WY. A door with worn rollers or a track obstruction creating elevated resistance causes the opener to strain and produce sounds under the elevated load in Wright. The manual release test distinguishes between the two in Wright, WY. A door that moves easily manually with no unusual sounds means the grinding originates in the opener drive mechanism in Wright.

Opener Light Works, Motor Won't Start — Capacitor First in Wright

Power is reaching the opener — the light confirms that in Wright, WY. The motor isn't starting despite having power in Wright. The motor capacitor provides the high-current starting pulse the motor needs to begin rotating in Wright, WY. A failed capacitor leaves the motor powered but unable to start in Wright. This is the most common cause of the light-on, motor-won't-start symptom in Wright, WY. A humming sound from the motor unit during the failed start attempt confirms the motor has power but can't rotate in Wright.

Door Opens but Won't Close — Limit or Sensor in Wright, WY

A door that opens correctly but won't complete the closing cycle has a safety system or limit issue rather than a motor issue in Wright. The safety sensor system is the most common cause — check the LED states first in Wright, WY. The down-travel limit set too high is the second most common cause in Wright. A limit adjustment or sensor realignment resolves most won't-close situations without component replacement in Wright, WY.

Inconsistent Operation — Wiring, Heat, or Rolling Code Sync in Wright

An opener that works correctly most of the time but fails intermittently is the most challenging diagnostic situation in Wright, WY. A remote with a failing battery that works at close range but not from the street. A logic board with a heat-related failure that occurs when the opener is warm but not when it's cool in Wright. A wiring connection that makes and breaks contact depending on temperature or vibration in Wright, WY. A rolling code remote that's lost synchronization from accidental activations in Wright. Herlihy documents the specific failure pattern from the homeowner's description to direct the diagnostic toward the most probable cause in Wright, WY.

Call Now — (888) 670-9331
The Manual Release Test

The Manual Release Test — How Herlihy Separates Door Hardware From Opener Faults in Wright, WY

What the Manual Release Test Involves in Wright

The emergency release cord is pulled to disconnect the door from the opener trolley in Wright, WY. With the trolley disconnected, the door can be manually lifted without the opener's involvement in Wright. The door is lifted and observed for three characteristics in Wright, WY. How heavy it feels relative to a correctly counterbalanced door. Whether it holds its raised position when released. And whether it moves at all when lifted in Wright.

Heavy Door Result — Spring Diagnosis Path in Wright, WY

A door that feels very heavy and won't hold its position when raised manually has a failed spring in Wright. The spring's counterbalancing force is absent or significantly reduced in Wright, WY. The opener symptom — running without moving the door, straining, moving slowly — is a consequence of the spring failure rather than an opener failure in Wright. The correct repair is spring replacement, not opener repair or replacement in Wright, WY.

Door Lifts Freely Result — Opener Diagnosis Path in Wright

A door that lifts easily and holds its position when raised manually has correctly functioning door hardware in Wright, WY. The spring is providing correct counterbalancing force. The rollers are traveling freely in Wright. The door hardware is not the source of the opener symptom in Wright, WY. The diagnosis proceeds to opener component assessment in Wright.

Door Won't Move At All — Physical Blockage Path in Wright, WY

A door that won't move in either direction when the release is pulled is physically blocked in Wright. A cable failure that has jammed the door in the track at an angle. A roller outside the track channel creating a physical stop. A track obstruction at a specific point in the travel path in Wright, WY. Physical blockage assessment and repair is required before the door can operate correctly in Wright.

Why This Test Is the First Step on Every Opener Call in Wright

Without the manual release test, every opener symptom looks the same from the outside in Wright, WY. The door doesn't respond correctly to the opener command in Wright. That description fits a broken spring, a failed logic board, a stripped drive gear, and a disconnected carriage equally in Wright, WY. The manual release test distinguishes between these causes in thirty seconds in Wright. It's the most efficient diagnostic step available on an opener service call in Wright, WY.

Call Now — (888) 670-9331
Opener Component Faults Herlihy Diagnoses and Repairs

Opener Component Faults Herlihy Diagnoses and Repairs in Wright, WY

Logic Board Failure in Wright

The logic board processes every input and controls every output in the opener system in Wright, WY. A failed logic board can produce symptoms ranging from complete non-response to erratic and inconsistent behavior in Wright. It's the most common significant opener component failure and the repair most likely to be preceded by an incorrect full opener replacement in Wright, WY. Logic board replacement restores correct function at a fraction of the complete opener cost in most cases in Wright.

Motor Capacitor Failure in Wright, WY

The motor capacitor provides the high-current pulse that starts the motor rotating in Wright. A failed capacitor leaves the motor powered but unable to start in Wright, WY. The light works because power is reaching the unit. The motor won't start because the starting pulse isn't being generated in Wright. Capacitor replacement is one of the least expensive significant opener repairs in Wright, WY.

Drive Gear and Sprocket Wear in Wright

The plastic or nylon drive gear that meshes with the metal worm gear wears progressively from normal operation and accelerates when the opener runs against elevated door resistance from a weakening spring or worn rollers in Wright, WY. A stripped drive gear produces a motor that runs freely without moving the trolley in Wright. The grinding sound from the stripped teeth sliding past the worm gear is the identifying symptom in Wright, WY.

Trolley and Carriage Disconnect in Wright, WY

A disconnected trolley carriage — where the emergency release has been pulled but not reconnected — produces the identical symptom to a stripped drive gear or a broken spring in Wright. The opener runs, the trolley travels the rail, and the door sits stationary in Wright, WY. Reconnecting the carriage takes thirty seconds and costs nothing in Wright. The manual release test reveals this as the cause when the door lifts easily with the carriage already disconnected in Wright, WY.

Travel Limit and Force Settings in Wright

Incorrect travel limits stop the door before it fully opens or closes in Wright, WY. An incorrect down-limit leaves a gap at the floor. An incorrect up-limit stops the door before it fully opens in Wright. Force limit settings that are too sensitive stop the door in response to normal resistance variations in Wright, WY. Both are adjustable calibrations that Herlihy corrects as part of every opener service in Wright.

Remote Synchronization and Antenna Issues in Wright, WY

Rolling code remotes generate a new code with each activation in Wright. A remote that's been activated many times outside the opener's range — in a pocket, for example — can advance its code beyond the opener's acceptance window in Wright, WY. Reprogramming re-establishes synchronization in Wright. Antenna damage or interference from a nearby source can also block remote signals at normal distances in Wright, WY.

Call Now — (888) 670-9331
Repair vs Replacement

Opener Repair vs Opener Replacement in Wright, WY

When Component Repair Is the Right Answer in Wright

A logic board replacement on an opener that's five to eight years old in otherwise good condition is almost always worth the repair cost in Wright, WY. A capacitor replacement on any opener under ten years old in good condition is worth repairing regardless of age in Wright. A drive gear replacement on a well-maintained opener under ten years old is typically worth repairing in Wright, WY. All three repairs restore a functioning opener at a fraction of the replacement cost in Wright.

When Full Opener Replacement Produces Better Value in Wright, WY

An opener that's more than fifteen years old and requires a logic board replacement warrants cost comparison with full replacement in Wright. An opener using fixed-code remote technology is a security vulnerability that rolling code replacement addresses in Wright, WY. An opener that has required multiple repairs in recent years is signaling end of service life in Wright. And an opener without battery backup serving as the sole home entry point warrants the battery backup upgrade in Wright, WY.

What Current Opener Technology Offers That Older Units Don't in Wright

Rolling code security that changes the access code with every activation in Wright, WY. Battery backup that continues door operation during power outages in Wright. WiFi connectivity for smartphone control and status monitoring from any location in Wright, WY. Automatic close timers that close the door after a set interval in Wright. Activity logs that record every door event in Wright, WY.

Herlihy provides the specific repair cost alongside the replacement cost where replacement is a reasonable consideration in Wright. The opener's age, the features available on current replacement units, and a clear recommendation with specific reasoning in Wright, WY. The homeowner makes the decision with complete information in Wright.

Call Now — (888) 670-9331
Herlihy's Opener Repair Process

Herlihy's Opener Repair Process in Wright, WY

1

Manual Release Test and Door Hardware Assessment in Wright

Emergency release cord pulled in Wright, WY. Door manually lifted and observed in Wright. Spring condition, roller condition, and track condition assessed in Wright, WY. Diagnostic direction established from the manual lift result in Wright.

2

Opener Component Diagnosis Where Hardware Is Ruled Out in Wright, WY

Remote and wall button isolation. Power supply verification. Logic board indicator assessment. Capacitor testing. Drive gear inspection. Trolley carriage connection verification in Wright.

3

Specific Fault Named, Explained, and Priced in Wright

The specific fault identified and explained in plain language before any work begins in Wright, WY. Why it's producing the symptom. What the correct repair involves. The price confirmed in Wright.

4

Repair or Replacement Performed in Wright, WY

Logic board replacement where board failure is confirmed. Capacitor replacement where motor starting failure is confirmed. Drive gear replacement where gear wear is confirmed. Trolley carriage reconnection where disconnect is confirmed. Travel limit and force calibration where settings are the cause. Remote reprogramming where synchronization is the issue in Wright.

5

Seven-Point Verification Before Herlihy Leaves in Wright

Remote operation from driveway distance in Wright, WY. Wall button operation in Wright. Safety sensor beam interruption test in Wright, WY. Auto-reverse force test in Wright. Travel limit accuracy — door reaching floor and full open position in Wright, WY. Force limit setting — door stops on reasonable resistance in Wright. Manual release function — cord pulls cleanly and door operates manually in Wright, WY.

Why Herlihy Garage Doors

Why Choose Herlihy for Opener Repair in Wright, WY

Manual Release Test First — Every Opener Call in Wright

Herlihy performs the manual release test and door hardware assessment before any opener component is diagnosed in Wright, WY. The most common opener symptoms are door hardware problems in Wright.

All Major Brands — Residential and Light Commercial in Wright, WY

Herlihy Garage Doors diagnoses and repairs all major residential and light commercial garage door opener brands throughout Wright in Wright, WY. Chamberlain. LiftMaster. Genie. Craftsman. Skylink. Linear. And all other major brands in Wright.

Honest Repair vs Replace Recommendation in Wright

Herlihy presents both repair and replacement options where replacement is a reasonable consideration in Wright, WY. The recommendation comes with specific reasoning in Wright.

Every Opener Repair Guaranteed in Wright, WY

Every Herlihy Garage Doors opener repair is guaranteed in Wright. If the repair doesn't produce the expected result within the guarantee period, Herlihy returns and addresses it at no additional charge in Wright, WY.

Call Now — (888) 670-9331
Pricing

Garage Door Opener Repair Cost in Wright, WY

All pricing confirmed upfront before work begins in Wright.

Remote battery replacement or reprogramming in Wright$25 to $75
Sensor realignment in Wright, WY$50 to $100
Travel limit and force calibration in Wright$50 to $100
Trolley carriage reconnection in Wright, WY$50 to $100
Motor capacitor replacement in Wright$75 to $150
Drive gear replacement in Wright, WY$100 to $200
Logic board replacement in Wright$150 to $350
Complete opener replacement — standard in Wright, WY$300 to $600 installed
Complete opener — premium with battery backup and WiFi in Wright$500 to $900 installed

A logic board replacement costs $150 to $350 in Wright. A new opener with current features costs $300 to $900 installed in Wright, WY. On a five-year-old opener in good condition, the board replacement is the clear choice in Wright. On a fifteen-year-old opener with a fixed-code remote system, the additional cost for a new opener with rolling code security and battery backup is a reasonable investment in Wright, WY. Herlihy presents this comparison clearly for every significant opener repair situation in Wright.

Manual release test first. Door hardware before opener components. Correct diagnosis. Guaranteed. Herlihy Garage Doors in Wright, WY.

We diagnose first. We fix right in Wright. Call now in Wright, WY.

Call Now — (888) 670-9331
Service Area

Serving Wright, WY and Surrounding Areas

Downtown Wright

Residential & commercial in Wright, WY

North Wright

Full north-side same-day coverage

South Wright

All south-side communities in Wright

East Wright

East-end homes & properties in Wright, WY

West Wright

Full west-side coverage in Wright

Surrounding Areas

Call to confirm availability in Wright, WY

Call Now — (888) 670-9331
FAQ

Garage Door Opener Repair FAQs in Wright, WY

An opener that runs briefly and stops has encountered resistance that triggered the force limit within the first second of operation in Wright. The most common cause is a broken spring that makes the door too heavy for the opener to lift in Wright, WY. The opener tries to move the door, immediately encounters the uncounterbalanced door weight, exceeds the force limit, and stops in Wright. Do not continue running the opener in this situation in Wright, WY. Herlihy Garage Doors performs the manual release test to confirm whether a broken spring is the cause in Wright.
A seasonal failure pattern that occurs in warm weather and resolves in cool weather points to a heat-related logic board fault in Wright. Electronic components have reduced operating margins at elevated temperatures in Wright, WY. A component that's borderline functional at moderate temperatures may fail completely at the elevated temperatures inside a garage during summer in Wright. The failure resolves when the opener cools and returns when it heats up again in Wright, WY. This pattern reliably indicates a logic board component that needs replacement in Wright.
The logic board is the control center of the opener system in Wright. It receives every input — remote signals, wall button presses, sensor status — and controls every output — motor direction, speed, travel limits, and stopping in Wright, WY. A failed logic board can produce a complete non-response where the opener does nothing when commanded. It can produce erratic operation where the opener responds inconsistently or reverses at random. It can produce a partial response where some functions work and others don't in Wright.
Yes in Wright. A power surge from a lightning strike, a utility grid event, or a large appliance cycling on the same circuit can exceed the voltage tolerance of the logic board's electronic components in Wright, WY. The board may fail completely immediately after the surge or develop intermittent faults in the following days in Wright. Herlihy recommends a surge protector on the outlet serving the garage door opener as a simple preventive measure in Wright, WY.
A door that consistently stops at the same point in its travel has a specific condition at that height in the track path in Wright. A track dent or obstruction that the rollers contact at that height. A roller with a flat spot that produces enough resistance to trigger the force limit at the specific point in the rotation when the flat section contacts the track. Or a section of track that's slightly narrowed from corrosion or a previous impact that creates increased roller resistance at that height in Wright, WY. Herlihy inspects the track and rollers at the consistent stop height to identify the specific cause in Wright.
Both remotes failing simultaneously while the wall button works normally points to a shared issue with the remotes rather than an opener component failure in Wright. Both batteries failing at the same time is possible if both remotes were last programmed or installed at the same time in Wright, WY. An antenna issue on the opener that's preventing RF signal reception is another cause — the wall button uses a direct wire connection and doesn't require the antenna in Wright. Or both remotes have lost synchronization with the opener's rolling code if both were repeatedly activated outside the opener's range in Wright, WY.
Herlihy checks the board's indicator lights where the opener provides diagnostic LED codes in Wright. Power supply voltage at the board is verified to rule out a supply fault before the board itself is assessed in Wright, WY. The wall button and remote isolation sequence is completed to confirm the inputs are reaching the board in Wright. If power is confirmed, inputs are confirmed, and the board isn't responding correctly, board failure is diagnosed in Wright, WY. Where the opener provides diagnostic codes, the specific code guides the component assessment in Wright.
The travel limit tells the opener how far to travel in each direction before stopping in Wright. An incorrect down-travel limit stops the opener before the door reaches the floor in Wright, WY. An incorrect up-travel limit stops it before the door fully opens in Wright. The force limit tells the opener how much resistance to push against before stopping in Wright, WY. A force limit set too sensitively stops the opener in response to normal door resistance variations in Wright. A force limit set too liberally allows the opener to push against excessive resistance without stopping, risking damage to the door or hardware in Wright, WY.
Yes in many cases in Wright. Several manufacturers offer smart home accessory devices that connect to existing openers and add WiFi connectivity, smartphone control, and status monitoring without replacing the opener itself in Wright, WY. Compatibility depends on the specific opener brand and model in Wright. Chamberlain and LiftMaster offer myQ accessories compatible with most of their openers in Wright, WY. Herlihy Garage Doors advises on compatible smart home accessories for the specific opener during the service call in Wright.
Annual service is the standard recommendation for residential garage door openers in Wright. Service includes verifying the travel limit and force limit settings, testing the auto-reverse function with the beam interruption test and the contact force test, lubricating the drive mechanism where applicable, checking the antenna and remote function, and inspecting the wiring connections in Wright, WY. Regular servicing identifies developing faults before they produce a failure in Wright.
Garage door opener repair costs in Wright range from $25 to $100 for minor issues including remote reprogramming, sensor realignment, and limit adjustment, $75 to $200 for component repairs including capacitor and drive gear replacement, and $150 to $350 for logic board replacement in Wright, WY. Complete opener replacement costs $300 to $900 installed depending on the model in Wright. All pricing confirmed upfront before work begins in Wright, WY.
Yes. Every Herlihy Garage Doors opener repair is guaranteed in Wright. If the repair doesn't produce the expected result within the guarantee period, Herlihy returns and addresses it at no additional charge in Wright, WY.
Call Right Now

Opener Not Working? Call Herlihy in Wright, WY Today.

Most opener symptoms are door hardware problems in disguise in Wright. Herlihy Garage Doors performs the manual release test first on every opener call, correctly identifies whether the door hardware or the opener is the source of the symptom, diagnoses the specific fault, repairs it correctly, and completes a seven-point function verification before leaving in Wright, WY. Every opener repair guaranteed in Wright. We diagnose first. We fix right in Wright, WY. Call now in Wright.

Call Now — (888) 670-9331

Our Garage Door Services in Wright, WY

Garage Door Spring RepairGarage Door Opener RepairGarage Door InstallationGarage Door ReplacementGarage Door Off Track RepairGarage Door Cable RepairGarage Door Opener InstallationGarage Door Roller RepairGarage Door Track RepairRoll-Up Door RepairGarage Door Motor RepairCommercial Garage Door RepairOverhead Garage Door Repair

Serving These Locations

Garage Door Repair Marlow, OKGarage Door Repair Pikesville, MDGarage Door Repair Camano, WAGarage Door Repair Gillett, WIGarage Door Repair Lucas Valley-Marinwood, CAGarage Door Repair Konterra, MDGarage Door Repair Elmo, TXGarage Door Repair Willow Park, TXGarage Door Repair Hustisford, WIGarage Door Repair South Greensburg, PAGarage Door Repair Clawson, MIGarage Door Repair Durant, IAGarage Door Repair Velda City, MOGarage Door Repair Wakarusa, INGarage Door Repair Mclendon-Chisholm, TXGarage Door Repair Macdonnell Heights, NYGarage Door Repair Abbeville, GAGarage Door Repair Sand Ridge, NYGarage Door Repair Colchester, ILGarage Door Repair Emma, NCGarage Door Repair Winterville, GAGarage Door Repair Brooklet, GAGarage Door Repair Owatonna, MNGarage Door Repair Barboursville, WVGarage Door Repair Contra Costa Centre, CAGarage Door Repair Dimondale, MIGarage Door Repair Mountain Grove, MOGarage Door Repair Winterville, NCGarage Door Repair Kildeer, ILGarage Door Repair Oakland, MDGarage Door Repair Desert Edge, CAGarage Door Repair Tarrytown, NYGarage Door Repair West Wood, UTGarage Door Repair Dexter, ORGarage Door Repair Mccall, IDGarage Door Repair Lakehurst, NJGarage Door Repair Zolfo Springs, FLGarage Door Repair Star Valley Ranch, WYGarage Door Repair Loma Rica, CAGarage Door Repair Salem, ILGarage Door Repair Castle Rock, WAGarage Door Repair Prophetstown, ILGarage Door Repair Atkins, VAGarage Door Repair Holly Springs, GAGarage Door Repair Valley, ALGarage Door Repair North College Hill, OHGarage Door Repair Port Angeles, WAGarage Door Repair Bridge City, TXGarage Door Repair Knik-Fairview, AKGarage Door Repair Cave Springs, AR