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7.1 App Won't Connect to HC

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Written by Ollie Wells

Symptoms:

  • The Install App fails to connect to the system.

Troubleshooting Steps:

  • The Install App should give recommendations for troubleshooting. (Check Inverter has power, Check antennas are connected, Wait 60 seconds, Stand close to the Inverter…)

    • Check network and location access: CLICK "Check access in Settings" before proceeding (installers skip this step and then find out "the app was not allowed to link to local networks"

  • Power cycle the inverter (see article 99.1 Power Cycle Lunar Inverter).

    • Note: Waiting 1 minute after power cycle is required for the HC to boot up.

  • Confirm that the Installer App has the required permissions on the phone. The app will not be able to connect to the HC network without the "Local Network" permission enabled.

  • Under your phone's available Wi-Fi networks, check if there is a Lunar Wi-Fi network for your specific HC (Lunar_SIEXXXXXXX). If you put in the PW manually, double check PW characters like the number zero (0) vs the letter O/o.

    • If No Network:

      1. Check for LEDs on the HC in the Inv.

      2. Check AC power is connected.

      3. Turn off the AC breaker.

      4. Power cycle the inverter.

    • If Network is Present:

      1. Wait 1 minute.

      2. Ensure antennas connected.

      3. Close / reopen Install App.

      4. Stand close to the inverter. Opening the side door and having the phone nearby might help.

  • Check CAN wiring between Bridge & Inverter to ensure they are fully stripped and match.

  • GetUpgradeInfo Error

    1. Have the installer click on the "Advanced Actions" button and connect the site to the customer's Wi-Fi network.

    2. Reach out to the HC team on the #urgent-out-of-hours-hc-support Slack channel and link them to the support thread on the #lunar-install-support channel.

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