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Troubleshooting
SYMPTOM REMEDY
10
Thermostat does not turn
on system.
Check Wiring.
(See “INSTALLATION.”)
Check fuse. Replace with 3 amp
fuse if fuse has opened. Five
minute compressor short cycle
protection may be in effect. Press
RESET to override. NOTE: This will
erase programming.
Thermostat turns on and off too
frequently.
Increase Temperature Differential
(See “PROGRAMMING.”)
Display is blank, flashing or
constant "LO BAT".
Replace batteries.
System fan does not operate
properly.
Move fan option switch to either
gas or electric, to match system.
(See “INSTALLATION.”)
Time shown on display is not the
current time of day.
Change time of day setting.
(See “PROGRAMMING.”)
Thermostat does not follow
program.
Thermostat in MANUAL mode. (See
“PROGRAMMING.”)
Thermostat may not have been pro-
grammed in HEAT or COOL position.
Verify program.
Check AM/PM indicators at time of
day and programmed time changes.
(See “PROGRAMMING.”)
Verify program and day of week
are correct. (See “PROGRAMMING.”)
Thermostat does not advance day
of week.
To view or change day of week,
use method on page 5.
If problems with thermostats cannot be solved, call:
Technical Support: (800) 445-8299
Monday-Friday 7:30-5:30 CST
For warranty returns, send thermostat, shipping prepaid to:
Uni-Line North America
Warranty Claims Department
515 S. Promenade
Corona, CA 91719
110-737 3/11/04 8:15 AM Page 10