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Green LED blinking

Commissioning Mode — Waiting for mobile device connection

Lennox · Communicating Systems

What does Green LED blinking mean?

A blinking green light on the Commissioning Status LED means the commissioning button has been pressed, and the smart hub is now waiting for a connection from a mobile device.

Common Causes

  • Commissioning button activated
  • System awaiting mobile device connection

Repair Steps & Checklist

Click steps to track your progress.

  1. 1

    Open the Lennox app on your mobile device.

  2. 2

    Follow the in-app instructions to connect to the smart hub.

  3. 3

    Ensure your mobile device's Wi-Fi is enabled.

Browse all codes in this manual (41)
Verified technical data. Last updated: April 2026

Related Faults

14Inverter Flash Code 14 (Red 1 flash, Green 4 flashes) — OD Inverter Compressor Slowdown21Inverter Flash Code 21 (Red 2 flashes, Green 1 flash) — OD Inverter DC Peak Fault262 red flashes, 6 green flashes — Compressor startup fail
Source: Lennox Communicating Systems
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