What should I check first when an intercom door release is not working?

Start by deciding what hardware is actually being released: electric strike, maglock, gate trigger or another lock path. Then test whether the intercom relay changes state locally before blaming the lock itself.

What usually causes intercom door release faults?

The common causes are wrong relay type, wrong NO or NC wiring, missing separate lock power, incorrect unlock time, bad exit-button path, or a maglock or strike that was never matched properly to the door.

When should I contact support?

After you have confirmed the model, the symptom and the basic local checks and still cannot resolve the issue.

Should I test locally before changing more settings?

Yes. A local test usually tells you more than an app symptom alone.

What should I send support if I am still stuck?

The order number if available, the product model, screenshots or photos of the current status, and a short note describing what you already tested.

Support

Intercom Door Release Not Working: Troubleshooting Guide

If an intercom unlock button is not releasing the door or gate, do not guess the wiring. The fault is usually relay logic, lock power, or the wrong lock hardware path rather than the touchscreen or app itself.

Technical Support Guide

Summary

Use this guide when an intercom can call, ring or answer, but the strike, maglock or gate release is still not operating properly.

Applies to

Intercom systems with strike, maglock, gate or dry-contact release
Door-station and indoor-monitor unlock paths
Sites with exit buttons, REX devices or emergency release hardware

Difficulty and time

Difficulty: Moderate

Estimated time: 15 to 40 minutes

What you will need

Model details
Access to the door station or monitor locally
Photos of the lock and wiring path
One clear unlock test
Installer access if mains or regulated lock wiring is involved

What this guide covers

Identify the lock type first
Check relay, power and NO or NC wiring
Test exit and egress paths separately
Separate local unlock tests from app unlock tests

This guide is written for customers, installers and site managers who need a practical order of checks before replacing parts unnecessarily.

The quickest way to waste time here is to blame the door station when the real issue is the strike power, lock logic, or the release circuit around it.

Before you start

Write down the current behaviour before making changes. A clean baseline makes support much easier.

Note the exact intercom, lock and power-supply models.
Take photos of the lock, frame, relay wiring and exit path.
Know whether the lock is a strike, maglock or gate trigger.
Test one unlock path at a time.

Important

Door release wiring can affect safety and compliance

If the door is on an exit path, uses a maglock, or forms part of a commercial egress route, wiring and release logic should be checked by a qualified installer where required.

Do not guess the lock hardware or emergency-release path.

What usually causes this

The intercom relay is working, but the strike or maglock has no proper power supply.
The lock was wired to the wrong NO or NC contacts.
The unlock time is too short to see or hear the release clearly.
The exit button or REX path is wired differently from the intercom path.
The lock hardware itself is the wrong type for the door.

Step 1: Identify the lock type and prove the relay path first

Before changing settings, work out exactly what hardware the intercom is supposed to release.

Confirm whether it is an electric strike, maglock, gate trigger or another device.
Confirm whether the unlock fails for everyone or only one user path.
Check whether the relay clicks locally when unlock is pressed.
If the relay never changes state, the problem is upstream of the lock power.

Diagram: strike versus maglock relay logic

Simple release logic diagram

Intercom relay -> lock power path -> strike/maglock/gate input
                 
                  -> exit button / REX / emergency release path (if used)

Step 2: Check lock power, NO or NC wiring, and unlock timing

Most release faults are not app faults. They are lock-circuit faults.

Confirm the strike or maglock has the correct separate power source where required.
Check whether the wiring should use normally open or normally closed contacts.
Check whether unlock time is long enough to test clearly.
On maglocks, check any break-glass or emergency-release path as well.

Step 3: Test exit button, REX and egress path separately

This helps show whether the problem is the intercom relay path or the wider door circuit.

Test the exit button separately if one exists.
Test any request-to-exit or motion-based release device separately.
If the exit path works but the intercom path does not, the fault is probably at relay or intercom config level.
If neither path works, the problem is more likely lock power or wiring.

Step 4: Separate local unlock tests from app unlock tests

Do not mix these together. First prove that the local monitor or door station can release the lock, then test the app user path.

Test the monitor or local unlock button first.
Then test the app user path.
If the app fails but local unlock works, the issue is not the lock circuit.
If it still fails, collect photos and a clear wiring description for support.

Worked example

Intercom answers but maglock never releases

Situation: A site could answer the intercom and press unlock, but the maglock never dropped.

Solution used: The relay was switching, but the maglock path was wired incorrectly and the separate release circuit was never actually interrupting lock power.

Why this was chosen: The call path and unlock command were already proven, so the fault had to be in the lock circuit.

Installation notes: The exit path and emergency-release path were checked separately before closing the job.

Common mistakes

Assuming the door station powers the lock directly when the lock really needs its own power path.
Using the wrong relay contacts for the lock logic.
Testing only from the app without proving the local unlock path.
Ignoring exit-button or egress hardware that shares the same circuit.

Troubleshooting table

Symptom	What to check	What to do next
Relay clicks but door stays locked	Lock power, NO or NC wiring, wrong lock type	Check the lock circuit rather than the app or monitor.
Exit button works but intercom unlock does not	Intercom relay path, relay config, unlock timing	Focus on the intercom relay logic rather than the lock itself.
Maglock or strike behaves unpredictably	Shared wiring path, power drop, egress hardware interaction	Check the whole circuit and collect photos before escalating.
Unsure whether support is needed	Not enough evidence collected yet	Take photos, model details and one clear symptom description before escalating.

When to contact support

Contact SecurityWholesalers support when you have the model details, one clear symptom description, and the basic local and settings checks have already been completed without solving the issue.

Related support guides

Tech Support Guides - Browse the wider support section.
Intercom Support Guides - Return to the relevant support sub-hub.

Related buying guides

Intercom Buying Guide - Intercom planning guide.
Access Control Buying Guide - Door hardware and egress planning guide.

Relevant product categories

Intercom Products - Intercom categories.

Still stuck?

Need help choosing or setting up a system? Contact SecurityWholesalers support with your order number, product model and a clear description of the issue.

Frequently asked questions

What should I check first when an intercom door release is not working?
Start by deciding what hardware is actually being released: electric strike, maglock, gate trigger or another lock path. Then test whether the intercom relay changes state locally before blaming the lock itself.
What usually causes intercom door release faults?
The common causes are wrong relay type, wrong NO or NC wiring, missing separate lock power, incorrect unlock time, bad exit-button path, or a maglock or strike that was never matched properly to the door.
When should I contact support?
After you have confirmed the model, the symptom and the basic local checks and still cannot resolve the issue.
Should I test locally before changing more settings?
Yes. A local test usually tells you more than an app symptom alone.
What should I send support if I am still stuck?
The order number if available, the product model, screenshots or photos of the current status, and a short note describing what you already tested.