Rheem Cloud Connectivity / Account Linking Issue

Thermostat shows Wi-Fi connected but does not appear in the Rheem app or cannot be controlled remotely.

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Possible Causes

Thermostat not properly registered to Rheem cloud, Outdated app version, Router blocking outbound ports, Corrupted thermostat cloud token

How to Fix / Troubleshooting

Steps:

  • Update app: Ensure you have the latest version of the Rheem app installed.
  • Re-add thermostat: In the app, remove the thermostat (if listed) and run the add-device process again, following on-screen pairing instructions.
  • Check router settings: Ensure your router allows outbound connections and is not blocking the thermostat's MAC address.
  • Reboot router and thermostat: Power cycle both devices to clear temporary network issues.
  • If still not controllable: Contact Rheem support to verify cloud service status and, if needed, perform a deeper reset of the thermostat's cloud registration.
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Repair Difficulty

Easy 2/5

Required Part

Cloud Connectivity Service (No physical part)
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