After
Flush Mount 1812 Doorking Intercom
DoorKing Intercom System Installation
Broken Holovision unit with a modern, flush-mounted DoorKing 1812 system. With a cellular phone line.
Before
Holovision Intercom
DoorKing Gate Repair
DoorKing (DKS) gate operators serviced across LA. 6002, 6003, 1601, 1620, 9024 series.
★★★★★
A.J. is extremely knowledgeable and technically brilliant. He solved problems nobody else could. Highly recommend.
T
DoorKing Gate Repair Los Angeles
DoorKing operators are everywhere in LA. Apartment complexes, gated communities, commercial parking structures, HOA entrances. They’ve been manufacturing in Inglewood since 1948, less than 3 miles from LAX. If you live in Los Angeles County and your gate has a keypad or telephone entry system, there’s a good chance DoorKing built it.
The Tech Guys Doors and Gates services every current DoorKing operator and most discontinued models. The 9050, 9100, 9150 slide gates. The 6050, 6100, 6300 swing gates. The 1601 and 1602 barrier arms. We also work on older 6002, 6003, and 9070 units that are still running across the city. We stock the most common DoorKing replacement boards, photo eyes, loop detectors, belts, and batteries on our trucks.
DoorKing systems are built to last, and they’re expensive to replace. That’s why getting the right technician matters. DKS provides phone tech support, but they only work with DKS-trained techs who understand the wiring and diagnostics. We’ve spent time on the phone with DoorKing’s Inglewood team. We know how to read the board codes, troubleshoot the safety circuits, and get these operators running right.
DoorKing gate down? We service every DKS model.
Same-day diagnosis. Most repairs done in one visit. Or request an estimate online.
DoorKing Models We Service
DoorKing makes operators for every application, plus the access control systems that go with them. Here’s every operator model we work on.
Slide Gate Operators
| Model | Power | Capacity | Speed | Best For |
|---|---|---|---|---|
| 9050 | 1/2 HP, 115VAC | 500 lbs / 16 ft | ~8″/sec | Residential, single-family |
| 9024 | 1/2 HP Quadra Drive DC | 1,000 lbs / 40 ft | ~10″/sec | Residential, light commercial (battery backup) |
| 9100 | 1/2 HP, 115VAC | 1,000 lbs / 30 ft | ~10″/sec | Commercial, continuous duty |
| 9150 (1/2 HP) | 1/2 HP, multi-voltage | 1,000 lbs / 45 ft | ~10″/sec | Commercial, industrial, high-traffic |
| 9150 (1 HP) | 1 HP, multi-voltage | 1,500 lbs / 45 ft | ~10″/sec | Heavy industrial, high-traffic |
Swing Gate Operators
| Model | Power | Capacity | Speed | Best For |
|---|---|---|---|---|
| 6050 | 1/2 HP, 115VAC | 400 lbs / 10 ft | 90° in 12-14 sec | Residential, light commercial |
| 6100 | 1/2 HP, 115VAC | 500 lbs / 14 ft | 90° in 10-12 sec | Residential, commercial |
| 6300 (1/2 HP) | 1/2 HP, multi-voltage | 700 lbs / 18 ft | 90° in 16-18 sec | Commercial |
| 6300 (1 HP) | 1 HP, multi-voltage | 800 lbs / 22 ft | 90° in 16-18 sec | Heavy commercial |
Barrier Gate Operators
| Model | Type | Max Arm Length | Speed | Best For |
|---|---|---|---|---|
| 1601 | Single arm, straight | 14 ft | 2.5 sec cycle | High-traffic parking, commercial |
| 1602 | Wishbone arm | 27 ft | 5.5 sec cycle | Wide lanes, commercial |
| 1603 | AutoSpike barrier | 14 ft | 2.5 sec cycle | High-security applications |
We also service the DoorKing 1812 telephone entry system, the most widely installed telephone entry system in the country. If your 1812 isn’t dialing out, dropping calls, or won’t program new tenants, we can troubleshoot and repair it.
Our Slide Gate Work
Common DoorKing Problems We Fix
DoorKing operators are built heavy and designed for high-cycle commercial use. But they still break down. Here’s what we see most often across LA County.
1. Photo Eye Problems
This is the number one issue on DoorKing slide gates. The gate won’t close, or it reverses right after you give it a close command. The photo eyes are blocked, dirty, or misaligned. In LA’s dusty conditions, photo eye lenses get coated in grime fast. Sun glare during certain hours can also trip them.
Before you call anyone, try wiping the lenses with a soft cloth. Over 80% of photo eye “failures” are just dirty lenses. If that doesn’t work, check alignment. If the LED on the sensor is out completely, the photo eye is dead. We carry DoorKing 8080-057 monitored photo eyes and the 8080-060 deluxe housing version for exposed installations.
2. Safety Edge Damage
Your gate continuously reverses every time it tries to close. The safety edge is the rubber sensing strip on the leading edge of the gate. When it gets waterlogged from rain or sprinkler overspray, it sends a false signal to the control board that something is in the gate’s path. The board does what it’s supposed to do and reverses.
There’s no fixing a waterlogged edge. The whole assembly needs replacing. We install the DoorKing 8080-096 reverse edge with LED indicator, which makes future troubleshooting faster because you can see the sensor status at a glance. If you’re near the coast or have sprinklers hitting the gate, waterlogged edges are something you’ll deal with eventually.
3. Control Board Failure
No response from the operator. Erratic behavior. Burned components visible on the board. DoorKing boards are modular and well-supported, which is the good news. The bad news is they’re not cheap. Board replacement is one of the more involved DoorKing repairs. We stock the 4502-018 for swing operators and 4602-018 for slide operators and handle the full swap, programming, and testing.
One important detail: there’s a January 2016 UL compliance split. Pre-2016 boards end in -012. Post-2016 boards end in -018. You have to match the board to the operator’s manufacture date. We’ve seen other companies install the wrong board and create compliance problems. We always verify the date before ordering.
Here’s the honest truth on DoorKing boards. Sometimes the board costs more than it makes sense to spend on an older operator. If you’ve got a 15-year-old 9100 and the board fails, we’ll give you a straight comparison of repair cost vs. replacement cost so you can make the right call.
4. Ground Loop Detector Issues
The gate thinks a car is always sitting there and won’t close. Or it never detects vehicles at all. The problem is usually the loop wire buried in the pavement, not the detector card itself. Pavement cracks, ground shifts, and tree roots can break the loop wire over time.
We test loop inductance first. If the detector card is fine but the loop is broken, that’s a concrete-cutting job to install new loop wire. We explain this upfront because it’s a bigger scope than just swapping a card. If the detector card itself has failed, we replace it with a DoorKing 9410-010 single-channel or 9409-010 dual-channel plug-in detector.
5. Battery Failure (9024 DC Model)
The 9024 is DoorKing’s DC slide operator with built-in battery backup. In SoCal heat, the batteries last about 2 to 3 years. When they start failing, you get intermittent operation, random resets, and slow gate movement. These symptoms can look like a control board problem, but the fix is much simpler.
We always check and replace batteries before digging into board-level diagnostics on the 9024. A proactive battery replacement every 2 years prevents most of these confusing service calls.
6. Older 6100 Swing Gate Mysteries
The DoorKing 6100 is a workhorse that lasts for decades. But the older units have wiring and board configurations that stump even experienced gate techs. If you’ve had another company out to look at your 6100 and they couldn’t figure it out, give us a call. We’ve worked on enough of these to know the quirks, and DoorKing’s phone tech support (800-826-7493) backs us up when we need a second set of eyes on a tricky diagnosis.
Technician Tip: DoorKing’s phone tech support is one of the best resources in the industry. They’ll walk trained technicians through diagnostics step by step and ship parts directly when needed. This is a major advantage over brands that don’t offer end-user or technician support. It helps us get your gate fixed faster.
DoorKing Parts We Carry
We stock the parts that cover the majority of DoorKing service calls. Most repairs get done the same day.
- Control boards (4502 series for swing gates, 4602 series for slide gates, 1601 series for barriers)
- Photo eyes (8080-057 monitored, 8080-060 deluxe housing)
- Safety edges (8080-096 reverse edge with LED)
- Loop detectors (9410-010 single-channel, 9409-010 dual-channel)
- Backup batteries for 9024 DC models
- Drive belts (1601-026 for barriers, 2600-089 for 6100 swing)
- Shaft assemblies and bearings (2600-904, 2600-466)
- Barrier arms (aluminum straight and octagonal)
- Remotes, receivers, keypads, and antenna kits
If we need a less common part, DoorKing ships from their Inglewood facility. Since they’re local to LA, parts typically arrive within 1 to 2 business days.
More Real Installations
After
Commercial Slide Gate Operator
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Liftmaster Gate Opener Installation
The LiftMaster CSL24UL is a high-traffic, commercial-grade, DC-powered slide gate operator with a battery backup system
Before
Chainlink gate with no motor
What DoorKing Gate Repair Costs in LA
DoorKing equipment is commercial-grade, and the parts reflect that. Boards and safety devices cost more than residential brands. But DoorKing operators last a long time when they’re maintained, so you’re protecting an investment that’s meant to run for 15 to 20 years.
Typical Service Costs (Diagnosis + Parts + Labor)
- Standard repair visit (photo eye, sensor, belt, battery, programming): $450 – $750
- Control board replacement (diagnosis + board + programming + testing): $750 – $1,200
- Major mechanical repair (motor, shaft, gearbox, or safety edge replacement): $1,200 – $2,000+
- Full operator replacement (remove old, install new, program, test all safety devices): $2,500 – $5,000+ depending on model, access control integration, and site conditions
- Commercial and HOA systems: Quoted per project. Property management contracts available.
We Quote Before We Start
DoorKing systems often include telephone entry, keypads, loop detectors, and multiple safety devices. The complexity of the connected system affects repair time and cost. A standalone 9050 residential operator is a different job than a 9150 connected to a 1812 telephone entry system with dual loops and monitored photo eyes.
We provide a written quote before any work begins. If we find something additional during the repair, we call you first. For older systems facing expensive board replacements, we’ll always give you a repair vs. replace comparison so you can make an informed decision.
DoorKing Gate Repair FAQ
My DoorKing gate won’t close. Is it the photo eyes?
Probably. Photo eyes are the number one cause of DoorKing gates refusing to close. Wipe the lenses with a soft cloth first. If that doesn’t work, check that the sensors are aligned and the LED indicators are lit. If the LEDs are out, the photo eye may be dead. If the LEDs are on but the gate still won’t close, the problem could be a waterlogged safety edge or a loop detector issue. We can diagnose it on site.
My DoorKing board failed. Should I repair or replace the whole operator?
It depends on the operator’s age and condition. DoorKing boards for the 9100/9150 run in the $600+ range for the part alone. If the rest of the operator is in solid shape, replacing the board makes sense. These machines are built to run for decades. But if the motor is noisy, the gearbox is worn, and the housing is corroded, putting a $600 board in a dying unit doesn’t make financial sense. We’ll give you the honest math on both options.
Can you program my DoorKing 1812 telephone entry system?
Yes. We program and troubleshoot the 1812 and other DoorKing telephone entry systems. Adding tenants, deleting old codes, fixing dial-out issues, replacing keypads. If your 1812 isn’t working properly, we can usually fix it during the same visit as an operator repair.
How long do DoorKing operators last?
A well-maintained DoorKing operator can run 15 to 20+ years. The 9150 in particular is designed for high-cycle commercial use and will outlast most other brands in the same application. Regular maintenance matters: battery replacement every 2 years, photo eye cleaning quarterly, chain lubrication twice a year, and a full inspection annually.
Another company couldn’t figure out what’s wrong with my DoorKing. Can you help?
We hear this one a lot, especially with older 6100 swing operators. DoorKing systems have specific wiring configurations and board diagnostics that not every gate company understands. We have direct access to DoorKing’s tech support team in Inglewood, and they’re excellent at walking through tricky diagnostics over the phone. Between our field experience and their factory knowledge, we can usually sort out problems that other companies give up on.
DoorKing Gate Down? We’ll Get It Running.
Same-day service across Los Angeles County. Parts on the truck. Honest pricing.
(310) 400-0314
Why Hire Us for DoorKing Repair
We know DoorKing systems inside and out. Operators, telephone entry, keypads, loop detectors, safety devices. We service the full ecosystem, not just the motor.
We carry DKS parts. Control boards, photo eyes, safety edges, loop detectors, belts, batteries. On the truck, ready to install. No ordering, no second trip for most repairs.
Factory support backing. We work directly with DoorKing’s tech support team in Inglewood. When a diagnosis gets complicated, we have a direct line to the engineers who designed the equipment.
We handle the tricky ones. Older 6100s, legacy 9070s, complex multi-gate commercial systems with telephone entry. We don’t walk away from DoorKing jobs that other companies can’t solve.
LA County coverage. We service the Westside, South Bay, and all of LA County. Same-day appointments available for most areas.
Other Gate Brands We Service
Recent Projects
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