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Troubleshooting
SYMPTOM REMEDY
Thermostat does not Check Wiring
turn on system (See INSTALLATION)
Check fuse. Replace with 3 amp
fuse if fuse has opened.
Thermostat turns on and off Increase Temperature Differential
too frequently. (See PROGRAMMING).
Display is blank, flashing or Replace batteries.
constant “LO BAT.”
System fan does not Move fan option switch to either
operate properly. gas or electric, to match system.
(See INSTALLATION).
Time shown on display is not Change time of day setting.
the current time of day. (See PROGRAMMING)
Thermostat does not Thermostat in MANUAL mode
follow program. (See PROGRAMMING)
Thermostat may not have been
programmed 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
is correct. (See PROGRAMMING).
Thermostat does not advance To view or change day of week
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 after hours service, a 24-hour
Automated Help Line is available
For warranty returns, send thermostat, shipping prepaid to:
MAPLE CHASE COMPANY
Warranty Department
2820 Thatcher Road
Downers Grove, IL 60515
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