Free on-site gate assessment - hinges, posts, and your LiftMaster or Nice gate operator checked before anything is quoted
The assessment is free and the quote is the invoice.
Linear Keypad & Intercom Repair: The University Park Owner’s Guide
Linear keypad and intercom repair in University Park typically runs $145-$385 installed, depending on whether we’re replacing the keypad face, the intercom module, or both. We stock Linear-compatible parts on the truck and can usually have the job done same day for keypads, with intercom swaps taking a little longer if wiring needs tracing. Most University Park homeowners discover the problem the way you just did: the keypad works when it wants to, or the intercom crackles like a drive-thru speaker from 1987.
Linear built a lot of the access systems still running in Highland Park and University Park today, and the parts fail in predictable ways. Heat kills the keypad membrane. Moisture gets into the intercom board. And sometimes the problem isn’t the part at all, it’s a corroded wire behind the mounting plate. That’s what we figure out first, because swapping a $200 part onto a bad wire just means you’ll be calling again in three months.
We’re an independent service company, not affiliated with Linear. But we’ve been fixing their equipment in this part of Dallas since 2001, and we know which keypad goes with which board without having to guess.
Which Linear Models This Applies To
Most University Park homes with Linear access control fall into one of three series: the AE series (AE-100, AE-500, AE-1000), the older AM/AP series, and the MEGACODE line. The keypad part number is usually on a white label on the back of the faceplate or inside the intercom housing. If the label’s baked off from Texas sun, we match it by measuring the mounting hole spacing and checking the wire count.
Here’s the gotcha most people hit: Linear changed their keypad wiring from 4-wire to 5-wire on the AE-1000 series, and the connectors don’t swap. A 4-wire keypad won’t run a 5-wire board no matter how many YouTube videos say otherwise. If you order the wrong one online, you’ll get a part that lights up and does nothing. We keep both versions in the service van, along with OEM Linear parts and quality aftermarket equivalents where the OEM part has been discontinued.
For intercoms, the main split is between the AMP-600 and the MEGACODE intercom modules. The AMP-600 is analog, two wires to the keypad, and it’s still serviceable. The MEGACODE modules use encrypted rolling code, which is great for security but means you can’t just wire in a generic aftermarket intercom and expect it to talk to your existing keypad. When we match a part, we match the series, not just the brand.
Signs Your Linear Keypad & Intercom Repair Is Failing
Here’s what we see most often on service calls in University Park, and what’s actually going on behind each symptom:
- The keypad only works in the morning or after it rains. That’s a membrane going soft from heat cycling. The top layer separates from the circuit traces, and humidity bridges the gap just enough to register a keypress, then loses contact when it dries out. It will get worse.
- You have to press the buttons hard, or twice. Same membrane problem, just earlier in the failure. The carbon contacts wear down and the flex layer loses spring. A new keypad face fixes it; no amount of cleaning brings dead contacts back.
- The intercom buzzes constantly or hums through the speaker. That’s usually a failing capacitor on the intercom board, or a ground wire that’s come loose behind the keypad housing. A buzzing intercom is not a wiring ghost. It’s a part that’s about to quit.
- The gate opens on its own, or the keypad lights up by itself. This is more common on MEGACODE systems than people realize. Moisture inside the keypad can simulate a button press on the board. We’ve had University Park customers swear someone tried to open their gate at 3 a.m., and it turned out to be a wet keypad from a sprinkler head hitting the brick pillar.
- The intercom audio is fine one day, static the next. Corrosion on the speaker terminals, usually. If the intercom housing has been painted over by a previous owner or installer, the paint traps moisture against the screws and eats the connection. We see that a lot on older University Park properties where the keypad is mounted on limestone or brick.
Replacement Cost & What’s Included
For University Park, here’s the honest math on what Linear keypad and intercom repair costs with us:
- Keypad replacement (AE series, OEM or aftermarket): $145-$225 installed
- Intercom module replacement (AMP or MEGACODE): $185-$315 installed
- Keypad and intercom together: $280-$385 installed
- Wiring repair or trace (if that’s all it needs): $85-$140
The range depends on whether you need just the face, the board, or the whole housing, and whether the mounting box needs re-seating into brick or limestone. Nothing gets quoted on a guess. We look at what’s on the wall, match the part, and give you a price before any work starts. That price is the price. It doesn’t change when we’re done.
Every repair we do carries our 90-Day Done Right Promise in writing. If the keypad acts up again inside 90 days, Hal Gatewood comes back and makes it right. No arguing, no invoice. And remember: $40 off any repair over $200, and no trip charge inside the county. If you’re a senior or a veteran, it’s 10% off, permanent.
DIY or Call Us?
Keypads and intercoms run on low voltage, so we’re not talking about the kind of jammed spring that’ll take your hand off. But there’s a reason we keep getting called out after a homeowner bought a part online: matching the part is where it goes wrong. If you wire a 5-wire keypad into a 4-wire system, or you grab a MEGACODE intercom for an AE-1000 system, best case the keypad lights up and does nothing. Worst case you short the board and turn a $200 repair into a $500 one.
What you can safely do: take off the faceplate, check for obvious corrosion or ants (yes, ants love keypads), and note the wire colors and part number inside. That information helps us bring the right part the first time. But if you want someone who knows the Linear wiring scheme from memory and will stand behind the work for 90 days, call us at (936) 296-2568. Hand me your number and I’ll call you back, same day, every time.
FAQs
In Texas, figure 5 to 8 years on a keypad membrane and 8 to 10 on an intercom board, assuming it’s mounted on a shaded wall. A west-facing brick pillar in full sun will eat a keypad in 4 years. That’s not a defect, that’s August. Call (936) 296-2568 and we’ll let you know if the part’s worth replacing or if it’s time to talk about a different mounting location.
Sometimes. If the issue is corroded terminals or a broken wire, yes, we fix it on the spot. If the membrane or board has failed, there’s no repair that lasts; we replace the part and warranty it for 90 days. Call us with the symptom and we’ll tell you which camp you’re in before we even schedule the truck.
A straight keypad replacement is usually 30 to 45 minutes. An intercom swap runs an hour to 90 minutes if we have to pull new wire. We’ll give you a window when you call and we show up inside it. (936) 296-2568 is a live person, 24/7.
We stock the most common Linear keypad faces, intercom modules, and wiring connectors on the truck, including AE-series and MEGACODE parts. If you have something older or less common, we’ll match it and have it on hand before we schedule the install. No surprise second trip. Estimates are free, so call us and ask.
Written by Hal Gatewood, Owner, Gatewood Fence & Gate at Gatewood Fence & Gate, serving University Park and nearby areas.





Before
After
Before
After
Before
After