Tag: Honeywell WiFi Thermostat RTH9585Wf

Some models of the Honeywell RTH9580WF 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 RTH9580WF .  Later, the thermostat asks you to enter this password to regain access. …