Linear Keypad & Intercom Repair Nationwide | Latch & Post Gate Repair

Linear Keypad & Intercom Repair: The Los Angeles Owner’s Guide

Linear keypad and intercom repair in Los Angeles typically runs between $185 and $420 installed, depending on whether we’re replacing the keypad face, the control board, or the entire unit. We stock Linear-compatible parts on our trucks, so most repairs happen the same day we arrive. What owners usually notice first is a keypad that works intermittently, a code that stopped working overnight, or an intercom that crackles when a guest presses the call button. The good news is that these are rarely mysterious failures. Linear keypads and intercoms fail in predictable ways, and we’ve seen most of them in driveways from Sherman Oaks to Palms.

Call (626) 649-4572

Before we get into symptoms and pricing, one thing worth knowing: Latch & Post Gate Repair is an independent gate specialist. We’re not affiliated with Linear, and we don’t pretend to be. We’re a local Los Angeles shop that stocks and services Linear parts because they’re on a lot of gates in this city, and we’d rather carry the right part than make you wait a week for it.

Which Linear Models This Applies To

Linear gate keypads and intercoms fall into a few distinct families, and getting the right part means knowing which one you have. The most common keypad we replace in Los Angeles is the Linear AK-11 or AK-21 series, the weather-resistant boxes you see mounted on a gooseneck post beside the driveway. These are digital keypads with a metal or plastic face, and they pair with Linear’s MegaCode receivers. Intercom units, by contrast, are usually either the Linear AE-series audio intercom or a Linear access control station tied to a phone line or network connection. The compatibility gotcha that trips up most DIY parts buyers: the AK-11 and AK-21 look nearly identical from the outside, but the AK-21 has an extra relay for a second device or gate, and wiring one wrong can burn out the receiver board. We identify the exact unit by reading the model label inside the housing before we quote anything.

On the OEM-versus-aftermarket question, our honest guidance is specific to Linear. The original Linear keypad membranes and faceplates are well made, and for face-only replacements we lean OEM simply because the fit matters. For control boards and intercom power supplies, there are quality aftermarket equivalents that cost 30 to 40 percent less and hold up fine in Los Angeles weather. The key is matching voltage and relay type exactly. We’ve seen aftermarket boards wired into AE-series intercoms where the output voltage was close but not exact, and the unit ate through power supplies every six months until the board was swapped for the proper spec. That kind of mistake costs more in the end.

Signs Your Linear Keypad & Intercom Repair Is Failing

Here are the symptoms we hear most often from Los Angeles homeowners, along with what’s actually going on behind the faceplate:

• The code works, then doesn’t, then works again. This is almost always a failing keypad membrane or a worn ribbon connection where the membrane attaches to the board. Temperature swings between LA’s warm days and cool nights make the ribbon expand and contract, and eventually a contact goes flaky.
• The keypad beeps but the gate doesn’t move. A beep means the keypad is getting power and registering your press. The failure is usually downstream: a dead relay on the keypad board, a receiver that lost its programming, or a low-voltage short in the wiring between the keypad and the operator.
• The intercom works from the house but not from the gate, or vice versa. One-direction audio points to a failing microphone or speaker element in the call station, not the wiring. If both directions fail, it’s usually the power supply or the intercom board itself.
• Water inside the housing or corrosion on the terminals. Los Angeles isn’t a wet city, but coastal fog is real in Pacific Palisades and Playa del Rey, and sprinkler overspray ruins more keypads than rain ever does. Moisture kills the board over time, and you’ll see green corrosion building up on the screw terminals.
• The keypad backlight is dead or flickering. This is a low-voltage issue. Either the transformer feeding the keypad is dying, or there’s a partial short in the run. It won’t fix itself, and if you let it go, the keypad eventually stops reading inputs completely.

Replacement Cost & What’s Included

For a Linear keypad replacement in Los Angeles, you’re looking at roughly $185 to $295 installed. That includes the keypad, weather-sealing the housing, testing the full cycle, and confirming the code programming works before we leave. If we’re replacing the keypad board only, it lands between $150 and $240. Intercom work runs higher, typically $280 to $420, because there are more failure points: the board, power supply, mic, speaker, and wire terminals all get inspected and tested. We’ll show you the exact number in writing before any work starts, and that number is the number. No surprises when the job is done.

Every Linear keypad and intercom repair carries our 365-Day Done Right Promise. If it isn’t right, we make it right, no fine print. We also lay drop cloths and wear shoe covers when the intercom base station lives inside your house, which it often does in LA homes where the master station sits in the kitchen or hallway. Your floors stay clean, and we take a photo of the work area after we’ve cleaned up before we leave.

DIY or Call Us?

Keypads and intercoms are low-voltage, so they don’t carry the same risk as a gate operator’s high-tension springs or a 120-volt supply line. That said, there are a few places where DIY goes wrong. The first is the wiring: Linear keypads use a four-wire or six-wire run, and crossing the relay wires with the power wires can destroy the new board you just bought. The second is the programming sequence. MegaCode receivers need the keypad’s unique code enrolled in the receiver’s memory, and every Linear model does this slightly differently. What we tell Los Angeles homeowners is this: if you’d like to check the obvious things first, look for a popped breaker on the operator circuit, and inspect the wiring at the keypad for obvious loose or corroded terminals. If the problem isn’t visible in two minutes, the rest of the diagnosis needs a meter and a wiring diagram, not a guess. That’s where we come in. Call (626) 649-4572 and we’ll walk you through what we’d check on the phone, free.

Key Takeaways

• Linear keypad repair in Los Angeles usually costs $185 to $295 installed; intercom repair runs $280 to $420.
• The most common failure is a worn keypad membrane; the most expensive mistake is crossing relay and power wires on a DIY swap.
• AK-11 and AK-21 keypads look alike but are not interchangeable; the label inside the housing tells us exactly which one you have.
• We stock Linear-compatible keypads, boards, and intercom power supplies on the truck, so most work is same-day.
• Written price before work starts, 365-Day Done Right Promise, shoe covers and drop cloths on every visit, and a live person answers (626) 649-4572 around the clock.

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