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The Daily Insight

How do I factory reset my Vista 21 bit?

Author

Emily Sparks

Published Feb 22, 2026

How do I factory reset my Vista 21 bit?

Complete the following steps to factory default your Honeywell VISTA P-Series System:

  1. Enter programming. Go to your VISTA Keypad.
  2. Perform the default. Enter the command [*97].
  3. Default the account. Enter the command [*96].
  4. Confirm the default. Press [*99] to exit programming.

What should I do if my Vista alarm panel has a low battery?

The trouble beep can be silenced by entering any valid 4-digit code, plus Off [1]. A low battery trouble will not prevent the panel from being armed. A Vista P-Series Alarm Panel uses a 12-Volt Lead-Acid Battery.

How to check battery on Honeywell Vista P-series?

Enter walk test mode by pressing Installer Code + 5 + 0. A Vista P-Series Alarm Panel supervises its battery in two ways. Every three (3) minutes, the panel checks to verify that a battery is present and connected to the system.

How to check a problem on Honeywell Vista alarm panel keypad?

Check the zones which have been indicated for issues, and correct any issues you may see. If you are unsure, please contact our monitoring station. If the problem has been corrected, the display can be cleared if you enter the OFF sequence (security code plus OFF key) twice.

What happens when I replace the battery on my Ademco alarm?

The display on the master console shows a number of the sensor that needs a battery. If your system is disarmed, the master console emits fast pulsing beeps. If your system is armed, there are no audible tones. Replace the 9-volt battery in the affected sensor on the master console display.

The trouble beep can be silenced by entering any valid 4-digit code, plus Off [1]. A low battery trouble will not prevent the panel from being armed. A Vista P-Series Alarm Panel uses a 12-Volt Lead-Acid Battery.

Enter walk test mode by pressing Installer Code + 5 + 0. A Vista P-Series Alarm Panel supervises its battery in two ways. Every three (3) minutes, the panel checks to verify that a battery is present and connected to the system.

How do you clear a low battery display?

To clear a low battery display, you must first clear the low battery condition. Do this by demonstrating to the panel that the battery is present and that it will hold up under load. The easiest way to do this is with a walk-test. Enter walk test mode by pressing Installer Code + 5 + 0.

The display on the master console shows a number of the sensor that needs a battery. If your system is disarmed, the master console emits fast pulsing beeps. If your system is armed, there are no audible tones. Replace the 9-volt battery in the affected sensor on the master console display.