--- title: Communicator Not Responding - No Signals - Failed To Test - No Communication description: Communicator Not Responding - No Signals - Failed To Test - No Communication --- [Skip to content](https://support.geoarm.com/honeywell/l3000troubleshootingguide/communicatornotresponding-nosignals-failedtotest-nocommunication#main-content) English Show submenu for translations ![geoarm-by-alarmclub-logo-2024-transparent.png\]](https://support.geoarm.com/hs-fs/hubfs/geoarm-by-alarmclub-logo-2024-transparent.png?height=50&name=geoarm-by-alarmclub-logo-2024-transparent.png) Open main navigation Close main navigation - English Show submenu for translations - Visit GeoArm.com Visit GeoArm.com Hello. How can we help? - There are no suggestions because the search field is empty. 1. [Support Center](https://support.geoarm.com/?hsLang=en) 2. [Honeywell](https://support.geoarm.com/honeywell?hsLang=en) 3. [L3000 Lynx](https://support.geoarm.com/honeywell?hsLang=en#l3000-lynx) # Communicator Not Responding - No Signals - Failed To Test - No Communication POSSIBLE CAUSE a. System in Test mode. b. Telephone connection not secure. c. Digital communicator malfunctioning. d. Telephone number in the program needs prefix or access code. e. Telephone call to central monitoring the station requires operator assistance.  REMEDY a. Remove from Test mode. b. Check all connections. c. Check with a different CONTROL PANEL. d. Program prefix or access code into the CONTROL PANEL. e. System cannot work in this situation.  ![l3000-resideo-honeywell-home-lynx-plus-wireless-control-panel-10](https://support.geoarm.com/hs-fs/hubfs/l3000-resideo-honeywell-home-lynx-plus-wireless-control-panel-10.png?width=600&height=600&name=l3000-resideo-honeywell-home-lynx-plus-wireless-control-panel-10.png)   - [GeoArm](https://support.geoarm.com/geoarm?hsLang=en#main-content) - [FAQ](https://support.geoarm.com/geoarm?hsLang=en#faq) - [Update Credit Card](https://support.geoarm.com/geoarm?hsLang=en#update-credit-card) - [Geo-CT](https://support.geoarm.com/geoarm?hsLang=en#geo-ct) - [Geo-CTR](https://support.geoarm.com/geoarm?hsLang=en#geo-ctr) - [GeoAlarm App](https://support.geoarm.com/geoarm?hsLang=en#geoalarm-app) - [GeoAlarm](https://support.geoarm.com/geoalarm?hsLang=en) - [2GIG](https://support.geoarm.com/2gig?hsLang=en#main-content) - [Edge](https://support.geoarm.com/2gig?hsLang=en#edge) - [Gc2e](https://support.geoarm.com/2gig?hsLang=en#gc2e) - [2gig-345fob](https://support.geoarm.com/2gig?hsLang=en#2gig-345fob) - 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