Owner's Manual
Page 14
... is blank when changing batteries, reset the time and day. Your program does not require resetting; As the batteries run out completely. Important: Even if you insert the batteries within approximately 30 seconds of the thermostat. The message flashes for approximately ten seconds. If the display is ...and day. Open the battery door from shutting down due to two months before the batteries run low, your thermostat shows a "bAt Lo" message in the digital display. Replacing the Batteries (T8002 Models Only) The T8002 Thermostat requires three AA alkaline batteries to operate.
... is blank when changing batteries, reset the time and day. Your program does not require resetting; As the batteries run out completely. Important: Even if you insert the batteries within approximately 30 seconds of the thermostat. The message flashes for approximately ten seconds. If the display is ...and day. Open the battery door from shutting down due to two months before the batteries run low, your thermostat shows a "bAt Lo" message in the digital display. Replacing the Batteries (T8002 Models Only) The T8002 Thermostat requires three AA alkaline batteries to operate.