Google Nest
Bluetooth Low Energy (BLE) Connectivity Issue
Nest thermostat does not detect Nest Temperature Sensors or shows them as offline
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Possible Causes
Sensors too far from thermostat, Low battery in Nest Temperature Sensor, Interference from walls or appliances, Bluetooth disabled or malfunctioning on thermostat
How to Fix / Troubleshooting
Note: Temperature sensors connect via Bluetooth, not Wi‑Fi.
- Move sensor closer: Temporarily place the sensor in the same room as the thermostat to test connectivity.
- Replace sensor battery: Open the sensor and replace the coin cell battery with a fresh one of the same type.
- Re-add sensor: In the Nest or Google Home app, remove the sensor and add it again following the pairing instructions.
- Restart thermostat: Reboot the Nest by holding the ring for 10 seconds.
If sensors remain offline at close range, the thermostat's Bluetooth module may be failing and the display may need replacement.
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Repair Difficulty
Easy
2/5
Required Part
Nest Temperature Sensor, Nest Thermostat Display (Bluetooth Module)
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