Safety first: No electrical work is required.

Steps to restore remote control:

1. Verify account link: In the Goodman app, confirm the thermostat is registered to your account and shows as online.
2. Update app: Install the latest version of the Goodman thermostat app from your device's app store.
3. Test local control: Make changes directly on the thermostat and see if they sync to the app. If not, re-link the thermostat to your account.
4. Check router firewall: Ensure your router is not blocking outbound traffic from the thermostat. Disable strict firewall rules temporarily to test.
5. Wait for service restoration: If other users report issues or Goodman status pages indicate an outage, wait until cloud services are restored.

Thermostat app cannot control system remotely even though thermostat appears online

Possible Causes