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  • Equipment - Wireless Duct Probes - No Power or LED

Equipment - Wireless Duct Probes - No Power or LED

This article provides insight into basic troubleshooting steps for Wireless Duct Probes with power issues or LEDs not lighting up.

Written by Brian Matheron

Updated at December 11th, 2025

Table of Contents

No Power or LED

No Power or LED

  • If the Status LED is not lit up, click the Wake Button to see if the device has power.
    • Review the LED blink patterns and colors for more details.
LED Blink Interval Sensor Status
One green flash 15 sec* Wake-up, connected
One red flash 15 sec* Trying to join
Two green flashes Once Join complete, connected
Five red flashes Once Power-up
  • If the device has power and is connecting to the network, you should see the following in order:
    • Five red flashes
    • One green flash 
    • One red flash followed by two green flashes
  • If the device has power and is not connecting to the network, reference this article.
  • If the LED does not light up at all, the batteries may be dead.
    • The wireless duct probe takes 3.6V ER14505 Lithium Batteries
      • While these batteries do look like standard double-A batteries, standard double-A's should NOT be used.
      • These batteries can be ordered online or GridPoint Support will be happy to order and ship the replacement batteries for you.
  • If replacing the batteries still does not power up the unit, it will need to be replaced. Contact GridPoint Support for additional assistance.

 

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