Dsc Pc1550 Master Code Reset Rating: 7,4/10 8427 reviews

If your DSC home alarm is beeping for time loss, the internal clock will need to be reset. To do this, follow these steps: Press (.6) (Master Code) (1) Enter the time as HH MM in 24-hour format (00:00 to 23:59) Enter the date as MM DD YY; All entries must be 2-digits; for example, January is month 01. Hi All had a question, bought a house with DSC Classic PC1565 alarm bla bla bla Previous owners gave me only code they knew which i assume is the master code. So i enter the process to change the master code pressing.540# and it worked but the odd thing is the old code still works. It will also restore the Master Code to 1234 and the Installer Code to 5555. All zones that have been set up with the system will need to be reprogrammed, and all sensors will need to be relearned. Complete the following steps to perform a factory default on a DSC Impassa Alarm System: 1. Power down the system. It should be noted that the Installer Code and the Master Code on a panel can never be the same. Each needs to have its own unique four-digit number. Every alarm system brand has a standard default Installer Code and Master Code. Knowing these codes can be helpful for accessing a panel after it has reset to factory default. Below are some of. How to reset a PC1500/PC1550 and set a new master code. Hardware If the installer’s code is forgotten and a software reset cannot be performed, the panel can be reset to the factory default values with the following method. We currently have 5 eyes and a pannick button connected to the system. After reset, will these still the same. Need to Reset Installer Code for DSC PC1550 I've got an older ADT DSC PC1550 security system. The previous owner did not give us the master code or installer code, so we have not used it, but now would like to.

You can reset a DSC Impassa to factory defaults by first unplugging the AC transformer and disconnecting the battery to cut power. Then connect a jumper between inputs IO1 and IO2. Power up the panel, wait 10 seconds and power down. Then disconnect the jumper, and power the system back on.

Performing a factory default will restore all system settings to their default. It will also restore the Master Code to 1234 and the Installer Code to 5555. All zones that have been set up with the system will need to be reprogrammed, and all sensors will need to be relearned.

Complete the following steps to perform a factory default on a DSC Impassa Alarm System:

1. Power down the system. Start by opening up the DSC Impassa System. To do this, use a small screwdriver to press in the two bottom tabs on the front of the panel. Then carefully separate the front of the panel from the back. Disconnect the backup battery by unplugging it. Then unplug the AC transformer from the wall outlet. This will power down the system.

2. Apply the jumper. Connect a jumper between inputs IO1 and IO2. These inputs are shown in the picture below:


3. Perform the default. Plug in the AC transformer to power the system back on. Wait at least 10 full seconds. Then unplug the transformer to power the system back down. This should factory default the system.

4. Confirm the default. Disconnect the jumper. Then reapply AC power. Check and confirm that the system has been restored to its factory default settings. If it has, reconnect the backup battery, and close the panel. It the default failed, repeat the process and try again.

An easy way to check if the default went through is to try using the default Installer Code to access programming. Press [*8] on the main screen. The screen will display 'Enter Your Installers Code'. Enter in the default code of 5555. If the system displays 'Enter Section', then the factory default was successful. If it says the code was invalid, then the default failed to go through.

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I'm not sure about your monitoring situation, but if your Impassa is using an Alarm.com communicator, we have monitoring plans available that you could use, if interested. www.alarmgrid.com/monitoring
Great! We've written a new FAQ detailing this process as well.
Thank you very much that worked very nicely!
I got some additional information from DSC today. The Impassa can support up to 4 external keypads. They are enabled/disabled in 'zone' 201, 202, 203, and 204 respectively. So, if this is the only external keypad the process should be [*] + [8] + [5555] + [804] + [201] + [0's until the SN is deleted] then [#] until you exit programming.
I would imagine if you power down the keypad for a period of time (and I assume you have at least 1 wired keypad on the system) that the zone it's associated with should come up and show a trouble based on the lack of the keypad checking in. Then you'd know which zone to remove. I can't honestly answer the 2nd question off the top of my head.
Also I have another question. If I was to reset the entire impassa by the jumper method would that unenroll the wtk5504 arming station?
What zone would it be on? I know you have to do *8 + 5555 but what would the zone number be for that keypad
You delete it by deleting the zone it's on: [*8] + [Installer Code] + [804] + [3-digit zone number] + [enter 0s for the ID number to clear the zone] + [#] until you exit. If you'll be enrolling to another DSC Impassa you can follow <a href='https://www.alarmgrid.com/faq/how-do-i-add-an-external-keypad-to-a-dsc-impassa'>these steps</a>.
So I have a dsc impassa system. I also have the dsc wtk5504 wireless arming station. I want to know how to erase that arming station off of my current panel and then enroll it on to the new panel.
Kaitlyn, in this case, a jumper is a short piece of wire or other metal (a good metal paper clip might work, for example). The goal is to put a metal short circuit between the two terminals indicated.
What is a jumper?
This is correct, 6321 is also a fairly common installer code used by ADT.
Note: ADT installer code may be different. We purchased house w/ADT installed Impassa system that was no longer on contract. No documentation. No codes. Performed the reset shown above (thanks Alarm Grid) but the Installer code 5555 did NOT work. Scoured the web and tried code 6321 which DOES work (at least for me).

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Causes and Solutions


If your DSC home alarm is beeping every 10 seconds or so, there could be many possible causes. In most cases, it’s because the alarm panel has detected one or more “trouble” conditions. These include things like low battery trouble, phone line failure, and communication problems, among many others.



Note: DSC keypads also emit 'normal' beeping caused by the 'Chime' function. You can easily toggle this on or off by pressing and holding the 'Chime' button on any keypad that has function keys. For keypads without a chime button, just press '*4'.

On this page, I’ll show you how to silence trouble beeping, and how to use a few easy keypad commands to find the source of the trouble. I’ll also explain how to fix some of the most common causes of alarm system beeping.

If you have a brand of alarm panel other than DSC, see 'My Alarm Keeps Beeping - What Can I Do?'.


While beeping alarm keypads can be very annoying, they’re designed that way for a reason. The alarm beep is intended to get your attention so you’ll go to the keypad, where you can then get a detailed visual indication of what the problem is. Unfortunately, these problems usually seem to crop up in the middle of the night!


How to Silence the Beeping Keypads


1) Go to any keypad and make sure the system is disarmed. If not, enter your disarm code as usual.
2) Press the “#” key. This will silence your DSC alarm system keypads.
With the noise eliminated, you can relax a bit and figure out what to do next.


Be aware that the keypads COULD begin beeping again.
The # key doesn’t DISABLE beeping keypads; it only stops beeps for the CURRENT trouble condition.
Keypads may begin beeping again if:
1. The ORIGINAL cause of the trouble condition momentarily clears itself, then returns, or
2. A DIFFERENT trouble condition occurs
In either case, pressing the # key again will acknowledge and silence the latest beeping event.


Reading Trouble Conditions

Trouble codes are displayed on DSC keypads using either LED’s (on basic LED keypads) or as text (on LCD keypads with alphanumeric displays).
Over the years, DSC has made many different alarm panels, and they don’t all share the same trouble code scheme. For this reason, I highly recommend you download a copy of the “User Manual” for your specific panel model.
You can find links to free DSC manuals on my alarm system manual sources page.


Displaying the Trouble Codes

Go to any keypad and press “*”, then “2”. The keypad will switch from its “idle” display to its “trouble code” display. The lit LED’s or text will now correspond to the trouble code table. The example below is for the Power 832/864 family of panels.


Notice that if a “1” is displayed (“Service Required”), pressing the “1” key again will cause the specific problem to be displayed.
Note: If you have a DSC model PC4020, there won’t be any numbers. This system uses LCD keypads with fixed displays, so instead of numbers, the trouble condition is spelled out in text form.
Make a note of the trouble condition(s). I’ve listed some of the most common problems below, along with ways to handle them.
After attempting to correct any of the problems below, the trouble display may not clear immediately. Arming, then disarming the system will reset most trouble displays.


If there are no trouble codes displayed when you press *2, your DSC system isn’t the problem.
The beeping is probably coming from another device. For example, you may have a hard wired smoke detector chirping due to a low battery.
In that case, see How to Stop a Beeping Smoke Alarm.


Top 6 Reasons Why Your DSC Home Alarm is Beeping

1. Battery Trouble

If your DSC home alarm is beeping due to this condition, the main panel battery is low or failing.

Dsc pc1550 master code reset button

If you’ve recently had a power outage, wait 24-48 hours after power is restored. The battery may simply have discharged, and will recharge when the electricity comes back on. If the beeping persists, the battery probably needs to be replaced.
The battery can be replaced by your alarm company, if you have one. Or, if you’re fairly handy, you may be able to fix it yourself. Replacing an alarm battery isn’t very difficult, provided you can reach the main panel box.
For details on doing this yourself, see my page on DIY alarm system battery replacement.


2. AC Trouble

If your DSC home alarm is beeping for AC trouble, it means that the panel isn’t getting power from the low voltage transformer. This is a small cube that plugs into an outlet, usually near the main panel.
Possible problems and solutions:

  • Transformer is unplugged (Plug it in)
  • Transformer has a blown internal fuse (Replace transformer)
  • Outlet has no power (Check for a tripped circuit breaker)

For transformer details, see the alarm system battery page.


3. TLM Trouble – Telephone Line Monitor

If your DSC home alarm is beeping due to this condition, then it isn’t able to see the telephone line. The line may have been cut or damaged, or the phone service may simply be down.
If your phones are out, check for dial tone by plugging a standard telephone into the jack in the phone box outside the house.
If it’s dead there, call your phone service provider.
If it’s good, something may have been disconnected between the alarm panel and the exterior phone box. In this case, you’ll probably need an alarm technician to come out and trace the line.


4. FTC Trouble – Fail to Communicate

When a DSC home alarm is beeping for this condition, it means that the panel was unable to call the central station. This could be a result of no phone line as described above, in which case fixing the line will clear this condition as well.
Otherwise, check with your alarm company for instructions. They can check your alarm’s reporting activity, and advise you on further steps to take.
Note: FTC troubles will clear only when the panel successfully sends a signal to the central station. Call your alarm representative for help with this.


5. Zone Tamper and Low Zone Battery Trouble

If your DSC home alarm is beeping for either of these conditions, there is a problem with some form of wireless security equipment. This can include wireless door and window transmitters, remote keypads, and wireless keyfobs.
Tamper means the plastic cover is loose, missing, or somehow not attached correctly. Check the affected zone; you may be able to easily re-attach a loose cover.
A Low Zone Battery is generated when a remote transmitter battery is low or failing. If you do your own battery changes, replace the batteries in the affected transmitters. Otherwise, contact your alarm company for service.


6. Loss of System Time

If your DSC home alarm is beeping for time loss, the internal clock will need to be reset. To do this, follow these steps:


  • Press (*6) (Master Code) (1)
  • Enter the time as HH MM in 24-hour format (00:00 to 23:59)
  • Enter the date as MM DD YY


All entries must be 2-digits; for example, January is month 01.



These are the system trouble conditions I’ve seen most often. For help with other trouble conditions, check the manual for your specific panel model.


If your DSC home alarm is beeping even after you’ve tried everything, it may be time to consider replacing it.

This is especially true if you have an older system that's been discontinued.

Some points to consider:


  • Most newer DSC keypads are backwards-compatible with older models of panel, so you can probably find a replacement for a worn-out keypad. Depending on the age and condition of the system, this could be a good option

  • A new system can easily be had these days for as little as $99, or even free in some cases, provided you go with monitoring. This makes spending money on a very old system much less cost effective than it used to be

  • If you own a smartphone or other web-enabled device, consider how handy it would be to use it to remotely arm and disarm your system. Many newer systems are designed to be smartphone-compatible from the ground up. If you happen to have (or plan to have) cameras, many systems allow remote live viewing and playback on smart devices

Dsc Pc1550 Master Code Reset Switch


If you need to replace a hardwired DSC system, there is some good news..

You already have wiring in place, which is often the biggest expense for a hardwired system.

And, you can probably re-use your existing hardwired devices like door and window contacts, motion detectors, and glassbreak detectors with the new system.


If you have an older system that's starting to have problems, you may be thinking about replacing it.


To find out how much a new system might cost, get some free price quotes from alarm dealers in your area. Just answer a few questions below, and you'll receive your quotes via email.

These quotes are absolutely free!


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