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Linear Keypad & Intercom Repair: The Los Angeles Owner’s Guide
Linear keypad and intercom repair in Los Angeles typically runs $220-$480 installed, depending on whether we’re replacing a basic AC-1 keypad or a full-featured AE-1000Plus intercom with video capability. We stock the most common Linear entry devices on our trucks and can usually complete the swap same-day across the San Fernando Valley, Hollywood, and the Westside. Most Los Angeles owners realize their keypad or intercom is failing when the gate stops responding to codes, the call button goes silent, or visitors start calling their cell phones instead because the intercom speaker has gone dead.
Which Linear Models This Applies To
Linear keypads and intercoms span several distinct product lines, and matching the right replacement matters more than with some other brands because Linear uses proprietary communication protocols between entry devices and their access control boards.
The AC series - AC-1, AC-3, AC-4 - covers standalone pin-code keypads. These are the rectangular metal units you see on stucco walls throughout Los Feliz and Silver Lake. The AE series - AE-100, AE-500, AE-1000Plus - adds intercom and video capability. The ACP series handles telephone-entry systems for multi-tenant buildings common in Mid-Wilshire and Koreatown.
To identify yours, check the label inside the hinged cover or on the backplate. Model numbers fade in Los Angeles sun, so we photograph them during service calls. The mounting pattern varies: AC units use a single-gang box, while AE-1000Plus units need a double-gang or dedicated surface-mount backbox. We carry both OEM Linear replacements and quality aftermarket equivalents from Security Brands. Aftermarket units save roughly $40-$80 but may not support Linear’s older 1-wire communication format used in pre-2015 installs. Dean Prescott checks protocol compatibility on-site before quoting - a mismatch means your keypad will power up but never talk to the gate operator.
Signs Your Linear Keypad & Intercom Repair Is Failing
- Pin codes work intermittently or not at all. The membrane switch beneath the buttons degrades from UV exposure and Santa Ana wind dust. In the Valley, we see this after about 6-8 years - sooner if the cover gasket is cracked.
- Intercom call button is silent or produces static. The speaker/microphone element fails from moisture intrusion during our rare but heavy winter rains. Water finds its way through worn gaskets in hillside properties from the Hollywood Hills to Mount Washington.
- Backlight flickers or dies completely. The LED driver circuit overheats in south-facing installations. This is cosmetic until it isn’t - a dark keypad means visitors can’t see buttons after sunset.
- Gate opens randomly without code entry. The relay output is sticking closed, often from voltage spikes on older Los Angeles electrical services. This is a security issue, not just a nuisance.
- Video feed is snowy or drops out on AE-1000Plus units. The camera module cable fatigues at the hinge point from daily cover openings. We see this frequently on commercial gates with high visitor traffic in Downtown and Culver City.
Replacement Cost & What’s Included
| Service | Typical Range |
|---|---|
| AC-1 / AC-3 keypad replacement (parts + labor) | $220-$320 |
| AE-500 intercom swap | $340-$420 |
| AE-1000Plus with video (parts + labor) | $420-$480 |
| Multi-tenant ACP telephone entry repair | $380-$560 |
| Low-voltage wiring repair (per run) | $85-$150 |
What drives the range: device generation (older 1-wire systems need adapter modules), conduit condition, and whether the existing backbox is rusted out from coastal moisture in Marina del Rey or San Pedro. Every quote is written and agreed before work starts - written price first, work second - that’s the only order that makes sense. The 365-Day Done Right Promise covers the repair; if the new keypad or intercom fails within that year, we return and correct it at no charge.
DIY or Call Us?
There’s safe checking, and then there’s the part that goes wrong fast.
What you can do: verify the keypad has 16-24 VAC at the terminal block, confirm the cover gasket isn’t visibly cracked, and try a factory reset per the Linear manual. These steps rule out about 15% of calls we get.
Where DIY goes wrong: Linear devices communicate with the operator board at specific voltages and protocols. A homeowner-installed generic keypad often powers up but won’t trigger the gate, or worse, sends erratic signals that damage the operator’s logic board. Low-voltage wiring in Los Angeles gate systems runs through underground conduit that degrades from soil alkalinity - splicing into compromised cable creates ground faults. We’re not being cautious for caution’s sake. We’ve replaced operator boards that failed because a well-meaning owner used the wrong keypad model.
Call (940) 412-7340 and we’ll diagnose the exact failure, confirm compatibility, and quote the repair before any work begins.
FAQs
Most last 7-10 years in Los Angeles, though direct sun exposure and coastal salt air shorten that to 5-7 years in beach-adjacent neighborhoods. The membrane switches usually fail before the electronics. Call (940) 412-7340 for an exact quote - estimates are free.
Sometimes. A loose terminal or cracked solder joint is worth fixing. But failed membrane switches, corroded speaker elements, or damaged camera modules require replacement parts that Linear doesn’t sell separately - the whole assembly gets swapped. We diagnose on-site and tell you which path makes financial sense. Call (940) 412-7340 for an exact quote - estimates are free.
Most Linear keypad and intercom swaps take 45-90 minutes, assuming the existing wiring and backbox are sound. Running new low-voltage cable through damaged conduit adds time. We schedule a real arrival window, not an all-day wait. Call (940) 412-7340 for an exact quote - estimates are free.
We carry AC-1, AC-3, AE-500, and AE-1000Plus units on every Portcullis truck serving Los Angeles, plus the adapter modules for legacy 1-wire systems. Less common ACP telephone entry boards we source same-day from our supplier in Burbank. Call (940) 412-7340 for an exact quote - estimates are free.
Portcullis Gate Repair is an independent service provider - we’re not affiliated with Linear LLC, though our technicians are trained and experienced on Linear systems. We also stock parts for LiftMaster, Mighty Mule, and Ghost Controls entry devices.
Ready to get your gate entry working again? Call us at (940) 412-7340. A live person answers 24 hours a day, and we’ll give you a written price before any work starts - guaranteed by the Kingswell Way.
Written by Dean Prescott, Owner & Lead Technician, Portcullis Gate Repair at Portcullis Gate Repair, serving Los Angeles and nearby areas.





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