If a door or window sensor is not responding correctly on your Qolsys system, the problem may involve the sensor, magnet, battery, alignment, mounting, or communication with the panel.
These instructions apply generally to:
A door or window sensor may:
The exact symptom helps determine what should be checked.
Before troubleshooting, check the sensor name displayed on the Qolsys panel.
For example:
Make sure you are testing the same opening shown on the panel.
Make sure the alarm system is disarmed.
Then:
The sensor should respond consistently as the opening is operated.
If the panel shows the sensor Open even though the door or window is closed, inspect the sensor and magnet.
Many door and window sensors use two components:
When the opening is closed, these components need to be positioned correctly relative to each other.
Check for:
Do not relocate the sensor or magnet unless instructed by CommTech Systems.
If the panel continues showing Closed when the door or window is opened:
If the panel never changes to Open, contact CommTech Systems.
A sensor that always reports Closed may not provide the expected protection.
Look at the sensor and magnet without removing them.
They should:
If either part has fallen off, save the part and contact CommTech Systems.
Do not throw away a loose magnet or sensor.
Doors can shift over time because of:
If the door closes but the sensor and magnet are no longer positioned as they were originally, the panel may continue showing Open.
Contact CommTech Systems if the sensor or magnet requires repositioning.
Check that the window is completely closed and locked when appropriate.
Some windows can appear closed while remaining slightly open.
Also check whether the sensor or magnet has moved or become loose.
If the sensor also reports Low Battery, the battery may need replacement.
Use the correct battery for the specific sensor model.
After replacing the battery:
If the sensor stopped working after its battery was changed:
Contact CommTech Systems if the sensor still does not operate normally.
A Tamper condition usually relates to the sensor enclosure or mounting rather than whether the door or window is physically open.
Check that the sensor cover is completely closed and that the device has not been knocked loose.
If the tamper remains, contact CommTech Systems.
A Malfunction or similar trouble can indicate that the Qolsys panel is not receiving normal communication from the sensor.
If the sensor also has a low battery, address the battery condition.
If the malfunction remains, contact CommTech Systems.
An intermittent sensor should not be ignored.
For example, the sensor may:
Check for a loose sensor, loose magnet, door movement, or other visible problem.
Contact CommTech Systems if operation is inconsistent.
If the sensor or magnet falls off:
Temporary tape should not be considered a permanent repair.
If several sensors begin having problems at approximately the same time, the issue may not be with each individual sensor.
Write down the names of the affected devices and contact CommTech Systems.
The Qolsys panel may allow certain burglary sensors to be temporarily bypassed when arming.
Remember that a bypassed sensor does not provide its normal protection.
Use bypassing only as a temporary measure when appropriate, and have the sensor problem corrected.
Do not delete a door or window sensor from the Qolsys panel because it is not operating correctly.
Deleting the device can remove protection from that opening.
Do not factory reset the Qolsys panel because a door or window sensor is not working.
The sensor problem should be diagnosed directly.
Contact CommTech Systems if:
When requesting assistance, provide:
For your security, do not provide alarm codes, passwords, or other private account credentials through the support chatbot.