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Jason Jones
Jason Jones, Technician
Category: Home Security Systems
Satisfied Customers: 16184
Experience:  Installation of several types of systems.
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My DSC 1550 is not accepting the Master Code. I tried to

Customer Question

My DSC 1550 is not accepting the Master Code. I tried to reset the Master Code earlier and may have erased the original Master Code. Is this possible
JA: How long has this been going on?
Customer: Just happened. Tried to arm the unit and would hear long beep after entering my Master Code
JA: What troubleshooting have you tried?
Customer: Unplugged transformer and battery and plugged back in. Still same result
JA: The security expert can solve this for you. Anything else you want him to know before I connect you two?
Customer: I have red lights on next to the numbers on the keypad. No red zone lights however and unit is in ready mode
Submitted: 1 year ago.
Category: Home Security Systems
Expert:  Jason Jones replied 1 year ago.


By default, the master code will be 1500, 1550, or 1234.

If neither of those codes work, you can reprogram the Master Code by entering:

Installer's Code
XXXX (new Master Code)

I look forward to hearing your feedback concerning whether or not your problem is fixed.

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