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Troubleshooting
Symptom Remedy
Thermostat does not turn Check wiring.
on system. (See Installing Item 8600
Thermostat)
Thermostat turns on and off too Increase temperature differential.
frequently. (See Programming Guide)
Display is blank, flashing or Replace batteries.
constant LO BAT.
System fan does not operate Move Electric/Gas switch to
properly. either gas or electric, to match
system. (See Installing Item
8600 Thermostat)
Time shown on display is not the Change time of day setting.
current time of day. (See Programming Guide)
Thermostat does not Thermostat may not have been
follow program. programmed in HEAT or COOL
position. Verify program.
Check AM/PM indicators at time
of day and programmed time
changes.
(See Programming Guide)
Verify program and day of week
are correct.
(See Programming Guide)
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Note: Although the thermostat has a low battery indicator, replace the
batteries once a year to prevent leakage and to prevent the ther-
mostat and heat/cooling system from shutting down due to lack
of battery power in the thermostat.
If problems with thermostat cannot be resolved, call:
Technical Support: (800) 445-8299
Monday-Friday 7:30 AM - 5:30 PM CST
For after hours service, a 24-hour automated help line is available.
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