Troubleshooting Guide - Honeywell CT3400 Programming And Installation Instructions

Troubleshooting Guide

IF...
Display will not come on.
Display flashes during
programming.
Temperature change occurs
at the wrong times.
THEN...
■ Install batteries backwards for a few seconds to reset thermo-
stat; replace batteries correctly.
■ Make sure batteries are fresh.
■ Make sure batteries are installed correctly.
■ You have reached the temperature setting limit. The setting
range is 45° F to 88° F [7° C to 31° C].
■ Check the program times for the period in question. Be sure
that AM and PM indications are correct. Make sure the current
day and time are correct. Reprogram if necessary.
■ If you left the thermostat set for Adaptive Intelligent Recovery™,
the start times will occur before your programmed comfort
periods.
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