Honeywell T8665C Thermostat User Manual


 
49 69-1538
1COM is displayed. The thermostat is unable to
communicate with Energy
Utility management system
controller.
Contact your energy utility for assistance.
Heat or cool turns
on before
programmed time.
Adaptive Intelligent
Recovery™ control is on.
Adaptive Intelligent Recovery™ control
brings the heat or cool on early to meet the
temperature set for the programmed
period. See Adaptive Intelligent
Recovery™ control section. To disable
Adaptive Intelligent Recovery™ control,
contact you local Heating and Air
Conditioning contractor.
Table 3. Troubleshooting. (Continued)
Symptom Possible Cause Action