System Hub
HVAC Thermostats & Controls
Thermostat calibration, display issues, and control board diagnostics.
Common Thermostats & Controls problems
Thermostat Display blank
No power or information showing on your wall-mounted HVAC control panel.
Diagnostic pillar →AC Running Constantly
The system never shuts off, even after the desired temperature is reached.
Diagnostic pillar →Furnace Not Heating
The furnace fan is blowing, but the air is not warm or it won't stay lit.
Diagnostic pillar →AC System Won't Turn On
The entire HVAC system is unresponsive when you try to start it.
Diagnostic pillar →Heat Pump Not Switching Modes
Your heat pump is stuck in cooling mode during winter or heating mode during summer.
Diagnostic pillar →