• About
  • Contact
  • Privacy Policy
SecurityCamCenter.com
  • Home
  • Buying Guide
  • Learning & Tips
  • Technical Guides
  • Security Tips
  • Downloads
  • CCTV Glossary
No Result
View All Result
SecurityCamCenter.com
No Result
View All Result
Home Technical ADT

How to fix ADT Error Code 103 (quick solution)

Marco Albertini by Marco Albertini
in ADT

The ADT error code 103 gets displayed on the ADT keypads when there’s a problem with cellular or internet communication on the system. Most of the time this error code indicates a problem with the cellular connection or signal.

Other reasons that can cause a 103 error message to appear in the keypad are issues such as a loose tamper cover, the communicator is not registered, the communicator loses contact with the monitoring network, loose cables, and connection, etc.

ADT Error Code 103

In this quick guide, we will list a few instructions on how to troubleshoot ADT error code 103. All you have to do is follow the suggestions and you can fix the issue yourself without the need to have a technician come to your house.

What does ADT error code “103 check lngrng radio” means?

The message “103 checks lngrng radio” on your ADT system means a problem with the system backup communicator. This warning message appears on alphanumeric keypads of ADT Safewatch Pro 2000 and ADT Safewatch Pro 3000 systems when the system is experiencing communication problems.\

Another error message you may get is “Check 103 Long Range Radio” which means that there’s a problem with the mobile communicator connected to your system.

Additionally, error code 103 may also appear if the cellular radio loses the cellular signal. It’s just letting you know that the system is not on the network and the issue needs to be addressed.

For example, if there’s a temporary outage of your local mobile network such as routine maintenance, general problem, power outage in the area, trees damaging the wires, or new construction, these may interfere with your signal and trigger the system to display error 103.

How to Fix ADT Error Code 103

Before entering the commands on the keypad, troubleshoot the system by performing these basic steps.

Test out your system

The first basic important step is to restore communication with your alarm system. Maybe the cellular outage in the area was probably fixed and the signal was restored. Now you need to restore the ADT’s communication. , but communication should now be restored.

Start by contacting ADT or your monitoring station to arrange for a test to be performed on your home alarm system.

In many cases, error 103 will be fixed once the system is restored and tested out by the monitoring center. If the test comes out as successful, wait a few minutes, and most likely the error 103 will go away.

Power cycle the panel

Sometimes the error 103 shows up when the mobile device is no longer correctly registered with the ADT system. In this case, you can use the oldest trick in the book which is turning off and on the panel.

ADT suggests that turning off the system and then turning it on fixes most of the basic problems. So, that’s what you should do. Power the panel off, wait 60 seconds, and then power it on again. Check out if the connection is established.

Check the strength of your signal

Another suggestion is to check your signal’s strength. Enter the installer code + 899 and the panel will tell you the signal strength and whether the system is registered properly. Select the options 1 to 3

  • Option 1: It displays a message saying that it is in programming mode.
  • Option 2: It displays the signal strength. Ensure the signal is strong.
  • Option 3: If it displays “POOR” or “FAIL”, it indicates that the unit is not communicating properly with the network. Move the control panel to a place with a stronger signal.

The signal strength should be between -94dBm and -20dBm (required). If the signal strength ranges between -95dBm and -120dBm, the system will perform poorly or fail altogether.

Fixing the ADT error 103 via keypad

To successfully fix the ADT error code 103 yourself without the help of an ADT technician, enter these commands on your keypad:

  • Place your system into test mode (enter your master code and type 5).
  • Open the ADT keypad
  • Disconnect the white cable from the circuit board for 20 to 30 seconds (as seen in the picture below)
  • Reconnect the white cable back to the circuit board
  • Close the keypad
  • Enter your master code again into the keypad
  • Press the “Off” button two times
  • Check again. The ADT error code 103 should disappear by now

ADT Error Code 103

What do I need to do to reset my ADT alarm code?

These are the basic instructions for changing the user codes in the ADT system by the use of the keyboard. It depends on the model, if it doesn’t work just check the user manual.

  • To re-program the system press the asterisk (*) followed by the number 5.
  • Enter the four or six digit master code number (the one you use)
  • By inputting the numbers 01 through 32, you can choose the User Access Code that you intend to modify.

What if the ADT error code 103 doesn’t get fixed

If you tried all of these and the error 103 still shows on the screen, then might be time to call the ADT technical support. Try to solve the issue through the phone, if they send out a technician they’ll charge you for the service.

Marco Albertini

Marco Albertini

Italian-born Marco Albertini, with a background in Computer Science, found his passion in security camera systems, alarms, and cloud services. Based in New York since 2010, he's a sought-after expert, assisting numerous businesses and homeowners in securing their properties with advanced solutions.

Related Posts

ADT Technical Guides

ADT Cameras Not Recording Motion (Troubleshooting Guide)

ADT Technical Guides

How to Raise ADT Alarm Volume (ADT Is Not Loud Enough)

Do Ring camera work with ADT systems

Do Ring cameras work with ADT systems

adt camera not recording

Why ADT Camera Is Not Recording Clips (Quick Fix)

ADT Technical Guides

What ADT system do I have? Guide to Identify ADT Systems (2023 Guide)

Does ADT Work Without Internet

Does ADT Work Without Internet

Load More

Leave a Reply Cancel reply

Your email address will not be published. Required fields are marked *

Latest articles

Hikvision

How to Reboot Your Hikvision Recorder Remotely

Hikvision

Hik-Connect App Cannot Playback between 23:00 and 23:59 (Quick Solution)

Learning & Tips

Top Methods for Detecting and Preventing Car Break-Ins (2023)

How To Fix

How to reset Ring Stick-Up Camera (2023 Methods)

Learning & Tips

Motion Sensors Types And How Do They Work (Guide)

SecurityCamCenter is a participant in the Amazon Services LLC Associates Program. This post may contain affiliate link(s). An affiliate link means we may earn advertising or referral fees if you make a purchase through our links, at no extra cost to you.

Categories

© 2023 SecurityCamCenter.com / Security Tips and Tutorials

No Result
View All Result
  • Home
  • Buying Guide
  • Technical

© 2022 SecurityCamCenter.com / Security Tips and Lessons