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Error Mode
■ If the thermostat is unable to control your system due to an unex-
pected battery problem, the thermostat will enter Error Mode. In
this condition, the thermostat flashes “Err” on the LCD display, and
shuts off your system. To correct this problem, replace the batteries
with 2 new AA alkaline batteries, even if you have recently replaced
them. Next, use a paper clip to press the RESET button next to the
keypad. You will need to reprogram your thermostat and confirm
normal operation.
■ If Error Mode returns, please call Climate Technology Technical
support at 1-800-676-7861 for further information.
Auto Cut Off
Your thermostat will automatically cut-off in Heat
mode if the room temperature rises above 95˚F (35˚C).
It will cut-off in Cool mode if the room temperature
drops below 40˚F (4˚C).
NOTE:
If your system has malfunctioned and no
longer responds to thermostat controls, the Auto
Cut-Off will have no effect.
Mechanical Heat Back-Up
This thermostat includes a bi-metal switch that will
automatically turn on the Heat when the temperature
reaches about 41° F (5°C).
WARNING:
This switch only activates
the Heating terminal (W). The system
itself must be capable of automatically
turning the Fan On. Without normal Fan
operation, severe damage to the heat-
ing system could result.