Owner`s manual

OPERATION — PAGE 26
WILLIS POWER SYSTEMS
BASIC TROUBLESHOOT
Battery Replacement Indicator
• Immediately install new batteries when the icon starts ashing.
• The icon ashes for 120 days before the batteries are depleted.
• You should replace batteries once a year or before leaving your
thermostat unattended for more than a month even if the icon
has not appeared.
WARNING: It is extremely important to keep the batteries charged in the
thermostat.
• After replacing the batteries, set the time, day, and date.
• The temperature and program settings are saved and do not
need to be re-entered.
WARNING: Before removing the batteries, place the system switch on the
thermostat to off. Otherwise, the unit will continue to run even after the
batteries are removed.