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The Daily Insight

What is fault 107 wire expansion?

Author

John Thompson

Published Feb 17, 2026

What is fault 107 wire expansion?

A “107 wire expansion” fault indicates that the expander has either not been wired correctly or not set up correctly. You will need to double-check the jumper positions, wiring connections, and programming.

How do I reset my Honeywell Vista?

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.

How do I reset my Honeywell Vista-20P?

  1. Access the alarm’s programming mode by entering the installer code, followed by “8,” “0” and “0,” into the control panel.
  2. Press the “*” button on the control panel, followed by the “9” and “7” buttons to reset the security system to factory settings.

How do I add a zone expander to Vista-20P?

To add a second zone expander to a VISTA-20P:

  1. Configure the dip switches. After setting the tamper, response, and resistor dip switches, the unit needs to be addressed.
  2. Wire the 4219 to the VISTA system.
  3. Wire the hardwired devices.
  4. Test the 4219.

What does check 107 mean?

According to the Vista 15/20P programming manual a #107 indicates that expander #1 is having issues.

How do you address a 4219?

Valid addresses for the 4219 are address 1 on older non-addressable panels, and addresses 7 – 11 on newer addressable panels, such as the Vista-21iP and Vista-20P. Older panels only supported a single 4219 on the system, but newer panels can support up to 5 of these devices.

How do I put code in Vista 20P?

To add a secondary user code, enter the 4 digit master code followed by the number 8, plus the 2 digit user number (any number from 03 or higher) plus the 4 digit user code, i.e., [1234] + [8] + [03] + [5678]. The system will beep to confirm the user was added. Each user code can be assigned an authority level.