And a nest thermostat. Thermostat red light flashing or stays on.
Thm4000r02 Programmable Thermostat User Manual 69 2426 01
Solid red light on thermostat. This means the outdoor unit has shut itself down because of a problem and it sends a signal to the thermostat letting you know that there is a problem with the unit. That only happens when manually chosen or your system has an outdoor thermometer that has. If your receiver has a red status light this means it has lost connection to your thermostat. You may also see your heating showing as offline in the hive app. If the red light on your unit is located at the top or on the right side of the thermostat and the red light does not turn off this indicates that there is a ground fault in the heating system. If the blinking red light doesnt go away or keeps coming back a persistent blinking red light can mean a couple of things.
We use cookies to give you the best possible experience on our website. And the furnace wont come on. When the thermostat light emergency heat light is flashing or on during normal operation whether in the cooling or the heating mode but not the emergency heat mode this usually indicates that the outdoor unit is locked out. Sometimes the little red light indicates an open pressure switch which often means a fluechimney blockage. I have a honeywell thermostat th8321u1097. Birds and other small animals have been known to take up residence in flues when its particularly cold.
Was installed a couple of answered by a verified hvac technician. Favorite answer its probably a heat pump and that light indicates emergency heat or axillary heat is on. Youll need to check the power readings on your thermostat. Charge your thermostat with a usb cable if needed. When the thermostat emergency heat light is flashing or on during normal operation whether in the cooling or the heating mode but not the emergency heat mode this typically indicates that the outdoor unit is locked out. Its also possible the pressure switch is bad but before we decide that lets see if the chimney is blocked.
Red light is solid. This could be due to poor signal between your devices or flat batteries in your thermostat. The red light is on and the screen shows that there are two problems. On my honeywell hz322 there is a solid red light beside the. Reconnect the display to the thermostat base and go to settings technical info power. We use cookies to give you the best possible experience on our website.
This means the outdoor unit has shut itself off because of a problem and it sends a signal to the thermostat letting you know that there is a problem. One answered by a verified hvac technician.