# Z-Wave sensor is in malfunction
**GoSafer Security Knowledge Base**
*This operational reference is organized for GoSafer Security customers and staff. Alarm.com product names are retained where required for technical accuracy.*
## Overview
The Malfunction trouble condition indicates a device is unable to properly communicate. This article relates specifically to Z-Wave sensors. For alarm sensors, refer to your service provider for assistance.
## Procedure
### If a Z-Wave sensor is in malfunction or offline
1. Verify the Z-Wave sensor has sufficient battery power. Replace the battery if the device has a Low Battery trouble condition or the battery is dead.
Trigger the device to establish communication with the panel or hub. Depending on the sensor type, triggering the sensor may include:
1. Opening and closing a contact sensor
Activating a motion sensor
1. Pressing a side button on the sensor
2. Opening the battery compartment
If the behavior is still not resolved, contact your service provider for assistance.
## Source and support
For GoSafer Security assistance, visit [gosafersecurity.com](https://gosafersecurity.com/).
Original Alarm.com reference: [https://answers.alarm.com/Customer/Website\_and\_App/System\_Management/System\_Usage/Z-Wave\_sensor\_is\_in\_malfunction](https://answers.alarm.com/Customer/Website_and_App/System_Management/System_Usage/Z-Wave_sensor_is_in_malfunction)
Always verify safety, installation, compatibility, and current UI details against the original manufacturer documentation before operational use.