Should My HVAC Fan Be Set to ON or AUTO?
AUTO runs the fan with heating and cooling calls; ON keeps it circulating. Compare comfort, filtration, humidity, and blower electricity for your own system.
Thermostats, Comfort & Energy Savings
Thermostat questions, uneven rooms, and practical energy decisions.
How Do I Know if My Thermostat Is Bad?
A thermostat can fail, but power, schedule, placement, sensors, and equipment safety controls can mimic failure. Verify the signal and response before replacing it.
Why Is My HVAC System Not Responding to the Thermostat?
A thermostat setting may be accepted while the HVAC remains off. Check modes and visible clues, then have a technician trace the control and safety sequence.
Why Does My Thermostat Say Cooling but the AC Isn’t Running?
A cooling icon can appear during a normal delay or while a control, power, drain safety, or equipment fault stops the AC. Observe each section before replacing a thermostat.
Why Doesn’t My Thermostat Match the Room Temperature?
A thermostat and room thermometer can disagree because of location, sensor settings, timing, or a true control problem. Compare them safely before replacing equipment.