Carrier Comfort Series Thermostat – Installation Guide
Provides step-by-step installation instructions, wiring diagrams, configuration details, and safety precautions for both programmable and non-programmable Comfort Series thermostats. Essential for proper setup and operation.
Carrier Comfort Series Thermostat — Troubleshooting
Thermostat not powering on
Possible cause:
No power from HVAC system or loose wiring
Solution: Verify HVAC power, check breaker, and ensure thermostat wiring is correctly connected
Thermostat not responding
Possible cause:
Incorrect installation or misconfigured system settings
Solution: Confirm wiring, installation steps, and reset thermostat if necessary
AC not activating
Possible cause:
Incorrect mode, tripped breaker, or faulty wiring
Solution: Set mode to COOL, check HVAC breaker, and verify thermostat wiring
Heater not activating
Possible cause:
Furnace not connected or thermostat misconfigured
Solution: Verify furnace wiring and confirm thermostat is set to HEAT mode
Fan continuously running
Possible cause:
Fan set to ON instead of AUTO
Solution: Change fan mode to AUTO to allow normal cycling
Frequently Asked Questions
How do I program my Carrier Comfort Series Thermostat? +
Use the menu button to navigate to the scheduling section. Set your desired temperature and time for each day or weekday/weekend schedule.
What should I do if the thermostat display is blank? +
Check that the thermostat is receiving power from the HVAC system. Verify wiring connections and circuit breakers, then reset the thermostat if necessary.
Can I control both heating and cooling with this thermostat? +
Yes, the Carrier Comfort Series Thermostat is compatible with both furnace heating and AC cooling systems. Ensure correct wiring during installation.
How do I reset the thermostat to factory settings? +
Press and hold the reset button (or follow the reset procedure in the manual) until the display returns to factory defaults.
Why is my fan running continuously? +
The fan may be set to ON mode. Switch it to AUTO to allow normal cycling with your heating or cooling system.
Join The Conversation
Here you can share your thoughts or experiences about this thermostat. If you have any questions, please make sure to read the manual first. If you can’t find the manual, you can request one using our contact form.