BBB Business Review

What does service required mean on the DSC 1616, 1832, or 1864 system keypad?


When you are checking your trouble conditions and you see Service Required or the number 1 lit up, this can mean numerous things. Usually it doesn’t mean anything too serious and can be easily resolved. To determine what is actually wrong you will want to push * when the keypad says service required or push 1 if you’re on a fixed message keypad like the PK5501.


There are 8 different reasons why you have the service required trouble condition:

  1. Low Battery - This is the main control panel’s backup battery. They usually last about 5 years so this will be the most common reason for the service required trouble condition.
  2. Bell Circuit - This will appear when the control panel doesn’t see a siren on the bell circuit. If you’re not using a siren, put the 1K ohm resistor across the bell terminals.
  3. General System Trouble - This is usually from having a PC5204 and not having anything on O1. You’ll want to put a 1K resistor across O1 and AUX.
  4. General System Tamper - This is caused by an open tamper circuit on a module.
  5. Module Supervision - This will happen if a module or keypad is removed from the alarm system.
  6. RF Jam Detected - The wireless receiver is detecting a large amount of radio frequency noise.
  7. PC5204 Low Battery
  8. PC5204 AC Failure