User's Manual

40
Memory backup for the Programs and Thermostat Settings
In case of power outages, this thermostat has a memory backup powered by a lithium battery.
The lithium battery will typically last for several years. Memory storage includes all set programs
and thermostat settings. Do not remove the Lithium battery and the AA batteries at the same time,
otherwise all memory and settings will be lost.
SOFT RESET - If the thermostat has an abnormal display, press the RESET (R) button located at the
back of the thermostat. The programs and thermostat settings will remain stored in memory but the
clock will have to be set again.
HARD RESET - To clear the permanent memory (including all stored programs and settings) or to
change the temperature scale (°C or °F), a hard reset must be performed. Press and hold the
HOLD button, and at the same time press and release the RESET (R) key located on the back of the
thermostat. The LCD screen will blank out momentarily. When the display reappears, release the
HOLD key. The thermostat will be back to its default settings.
RESET