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MAINTAINING YOUR THERMOSTAT
REPLACING THE BATTERIES
Your thermostat uses three AAA alkaline batteries. The
display will flash REPL BAT when the batteries get low.
You won’t have to reprogram the thermostat if you
insert the new batteries within 20-30 seconds of taking
out the old ones.
To replace:
Set the system switch to OFF.
Remove the thermostat from the wall. See page 21.
Lift the batteries out of the holder.
Insert the new batteries, making sure the positive (+)
terminals all face toward the right.
Replace the thermostat on the wall. See page 22.
Reprogram, if necessary.
M5065
POWER OUTAGES
Backup batteries will hold the programming and keep
on the display during most power outages. Once the
power is restored, the system will resume normal
operation.
If the display goes off when power is lost, either the
backup batteries need to be replaced or were not
installed. When power is restored, the display will flash
1:00 PM to remind you to reprogram. If the colon is not
flashing, there is no AC power or the thermostat is not
properly connected to the subbase.
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  • the Thermastat iss completely dark and furnace not working
    Submitted on 8-2-2020 at 15:43

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