User's Guide

Troubleshooting
Problem Possible Reason
Solution
Re mo t e/ Sc e n e /
Au to m at io n c on t r o l
fa il e d.
YoLink Thermostat does not power on. Please power on . the YoLink Thermostat
Please follow the “User Guide of YS1603-UC
YoLink Hub” for troubleshooting.
The mobile signal is weak.
Please check after the phone signal is
restored.
Hub is offline.
D e v i c e t i m e i s
incons i s tent with
mobile phone time.
Click sync with the mobile via YoLink App.
Failed to auto update.
Out of communication range with
hub.
Check the signal of YoLink Thermostat
on YoLink App.
Other problems. Please contact customer service.
There was a power blackout and
Thermostat is offline after powering
on again.
Please refer to the Factory Reset to reset
your network. The time will be updated
automatically after network reset.
The time is set to not update
automatically, and there was a
power blackout.
Please reset the time manually.
Other problems.
Please contact customer service.
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