Installation Manual
N153
No power to W1 wire detected
The Nest thermostat isn't electrically detecting the W1 wire, but one is
connected to the Nest thermostat base.
N154
No power to Y1 wire detected
The Nest thermostat isn't electrically detecting the Y1 wire, but one is
connected to the Nest thermostat base.
N156
No power to G wire detected
The Nest thermostat isn't electrically detecting a G wire, but one is
connected to the Nest thermostat base.
N159
No power to wire detected
Your Nest thermostat isn't electrically detecting your wire, but one is
connected to the Nest thermostat base.
W1
- Nest can’t continue to connect to your
Wi-Fi network
The Wi-Fi access point may now fully support a Wi-Fi standard known as power
saving mode.
W2
- Failed to connect
The Wi-Fi access point may have security settings enabled that prevent the
Nest Thermostat from connecting.
W3
- Failed to connect
The Wi-Fi access point is not providing a network IP address to the Nest
Thermostat.
W4
- Failed to connect
The Nest Thermostat is connected to the wireless network but not to the
internet.
Important Note:
These errors may change with future software updates. Visit nest.com/support for the latest information.
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