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Back Lighting (Select Models)
Any key pressed lights the display for approxi-
mately ten seconds.
Replacing the Batteries
(T8002 Models Only)
The T8002 Thermostat requires three AA
alkaline batteries to operate.
As the batteries run low, your thermostat
shows a "bAt Lo" message in the digital
display. The message flashes for one to two
months before the batteries run out completely.
Replace the batteries as soon as possible after
the message flashes.
The batteries are located on the right side of
the thermostat. Open the battery door from the
bottom, lifting out.
If you insert the batteries within approximately
30 seconds of removing the old batteries, the
thermosat retains the current time and day. If
the display is blank when changing batteries,
reset the time and day. Your program does not
require resetting; it is stored permanently!
Important: Even if you do not see the "bAt Lo"
message, replace the batteries once a year to
prevent leakage and/or the heating/cooling
system from shutting down due to lack of
battey power.
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