How to Lock and Unlock a Honeywell Thermostat

Some models of the Honeywell thermostat, including the RTH9580WF we discuss in this post, feature a screen lock mode.  This prevents anyone from changing thermostat settings without first entering a pass code.  You create this code when you lock your thermostat.  Later, the thermostat asks you to enter this password to regain access.  So here … Continue reading How to Lock and Unlock a Honeywell Thermostat

Honeywell Thermostat Screen Locked

Many Honeywell home thermostats have a screen locked mode. This keeps anyone from changing thermostat settings without first entering a password.  First, you set this pass code when locking your t-stat.  Then, to unlock it, the t-stat asks you to enter this secret code. This then grants full control over settings such as WiFi, temperature, … Continue reading Honeywell Thermostat Screen Locked