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Picture this: You are about to call it a day and get your much-needed shut-eye, but you suddenly hear your DSC alarm beeping about every ten seconds. With each sound getting more and more unbearable, you get up and go to your alarm, but now you are confounded on what exactly to do to make it stop.


Watch Video: Ryan shows how to solve beeping DSC alarm system with a yellow light or triangle. Watch the vide here:  DSC 1616, 1832, 1864, Impassa, and Alexor Trouble Codes

DSC alarms provide top notch protection for you and your family. However, beeping is how your alarm communicates the trouble conditions or problems that you need to fix to ensure that your security system is in its tiptop shape. No problem. With this quick and easy troubleshooting and programming guide, you can work on the common DSC alarm system problems fast so you can go back to sleep or whatever it is that you are doing.

The first step is to stop the beeping so you can calmly trace and work on the trouble that caused the system to beep. Using any keypad, check if the alarm system is disarmed. If it is not, put in your disarm code. Press the pound (#) key. To know the trouble detected by your alarm system, press the star (*) key, followed by number 2. Your keypad will then display a trouble code number or illuminate a certain zone, which has a corresponding meaning in the trouble code table in the User Manual.

However, if you use DSC model PC4020, which has an LCD keypad with fixed displays, instead of displaying numbers, it will spell out the trouble condition. To download a copy for your panel model, go to the User Manual section of the DSC website and find the model of your panel. In this tutorial, we will show you the eight trouble code numbers and their corresponding trouble conditions as displayed in the Power 832 and 864 panels.

1. Low Battery

Number 1 corresponds to Service Required, though you may just do it yourself depending on the specific trouble. To know the specific trouble, press number 1. If it displays “Low Battery” and you had a recent power outage, wait 24 hours after the power comes back on. The battery just needs to recharge first. However, if the beeping persists, replace the battery as alarm batteries go down to about 80% of its original capacity after 3 years. You can call your alarm company for battery replacement or you can do it yourself as long as you can access the panel.

2. AC Power Loss

This means the panel is not getting power from the transformer. To save you trouble, do these basic troubleshooting steps in order. First, make sure the transformer is plugged in nice and tight into the outlet. If it is still not working, check if the outlet has power by looking at your home’s electricity and circuit breakers. If it still does not work, replace the transformer as it may have a burnt fuse inside.

3. Telephone Line Monitor Mishap

Your alarm system cannot detect the telephone line due to either damaged telephone lines or an interrupted phone service. First, plug a home phone into the telephone jack in your phone box and check for a dial tone. If there is a dial tone, check first if there are visible disconnections between your panel and the phone box. After that, you may need to contact your security company to check further for damaged connections. You also need to contact them if you recently had a cable telephone or DSL installation so they can update your system. If there is no dial tone, the phone service is down and you need to call the phone service provider.

4. Failure to Communicate with the Central Station

The panel cannot reach the monitoring station, which is crucial in emergencies and authorities are needed to respond. If this is due to the telephone service problem, fixing the phone line as outlined above will resolve this. However, if it is still not working, contact your alarm company so they can check your alarm system. 

5. Zone Fault

If it is a number 5, 6 or 7 displayed, then the problem lies in your wireless sensors like keyfobs, keypads, door and window transmitters, and so on. If it is number 5 displayed, press the number 5 for it to show the specific zone affected. It could be that a wireless sensor is not properly connected or something is amiss with that device. It also could be that your alarm system is not communicating well with your wireless devices. In this case, contact your alarm security.

6. Zone Tamper

For Zone Tamper, simply check for the cover of the affected zone or device. The cover may be missing or not fitted properly.

7 . Low Zone Battery

For this, change the batteries of the affected wireless sensors. For further help, contact your alarm security provider.

8. Loss of Time on System Clock

You need to reset the clock if you had a recent power outage or if the AC or battery lost power. It also could be that your panel model is not equipped for daylight saving time. In any case, you can easily set the time and date by pressing the following in order: star (*) key, number 6, Main Code, and number 1. Type in the correct time in the military format. Then, enter the current date in the MM/DD/YY format. To exit, press the pound (#) key and you’re set. For DIY troubleshooting, you may need to reset the alarm system to see the solution working. To do this, simply arm then disarm the system. If you need to replace or add devices, the Alarm System Store has it for you — alarm keypads, wireless sensors and remotes, and accessories and expansion modules like serial cables. Aside from our low-price guarantee, take advantage of the free shipping if your order is over $199. On top of that, you can reach our customer service representatives as needed on our toll-free support. DSC PK5508

The newest in the DSC keypad family, this 8-zone LED keypad can support all DSC Power Series panels. Valued at $48.77 Your alarm system may beep at the most inconvenient times, but take it as a small price so you can prevent bigger inconveniences, or worse, alarm system failure when it is most needed. But fret not. You don’t have to deal with this on your own as you can always get in touch the Alarm System Store team. So the next time your alarm system beeps, get up and know the trouble. As they say, an ounce of prevention is better than a pound of cure. In this case, it is always better to be woken up by your alarm’s beeping so you can do the necessary solution than have your alarm system fail when you need it the most.


J Railing

I use to have monitoring however I no longer have it. Yesterday the alarm went off which led me to conclude that I might have faulty sensors in that areas. Tonite the fire alarm went off and I cut the wire to stop the loud noise. Now the trouble beep won’t stop, how can I stop it?

Randy Stansel

For additional info of my previous question, I have the PK 1616. The yellow triangle stays lit. How do I reset to remove it from keyboard. Thanks!

Randy Stansel

I have the “Fire Alarm Pulsed Siren” triangle lit up on my keypad and can’t seem to remove it. Is there a reset button?
Tired of looking at it.


I have a problem I can’t arm the alarm but once I place the panic button the alarm come on but I can’t arm.

Zahid Yoosufani

I have a DSC PC3000 system. I have not used monitoring service for few years now. A month ago because of low battery condition, I changed the battery. Since then, after the system is armed, in few minutes it starts beeping with code that states “line communication error”. It is apparently trying to connect to monitoring service, which I don;t have (I used to have several years ago). The yellow trouble light comes on. This happened only after I changed battery. Is there a way to fix this issue and go back to my normal monitoring mode without annoying beeps to connect to monitoring service that I don’t have??

Robert Zuanetti

I know the problem following the video but how do you stop the beeping. The no 1 came up which means a service call. It happened Sat night and can’t get anyone until Monday. How do you stop beeping until you get a service provider out?

Umer draz

on control panel 7420 FG WILLSON single phase Generator Alarm fial to stop what i can check r how i clear this alarm?

Gerald Stevens

how do i reset my alarm,i do not remember my code


My DSC & Alarm system was never activated since I have a german shepherd dog, but it beeps anyway and says, “Keybus Fault”. It takes 3 or more hours of pressing the # button for this to stop, but it keeps happening.


My DSC panel yellow triangle sign is on which indicates trouble BUT I don’t know what the trouble is1 Any idea?
Thank you,

Steve Taylor

Hi. I have a DSC PC1616 alarm system and I would like to turn off the chimes associated with the low battery message while a replacement battery is delivered. I have the installer code. Can you provide the necessary programming to simply turn off the beeping for the low battery message under using the *8 installer programming? This is installed in my bedroom and is annoying when it beeps every 10 seconds in the middle of the night. Thanks.

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