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. ... When this happens, the indoor unit tends to keep on running because the indoor unit doesn't know there is a problem.
How do I fix the red light on my thermostat?
You can count the number of flashes, usually between two and nine, and then it just repeats itself. You can then reset the system by turning the thermostat "off", waiting thirty seconds then turning it back on again. This should restart the system, but it may take up to 10 minutes for the outdoor unit to start up.
How do I reset my Honeywell thermostat?
To reset your Honeywell Thermostat, switch it off, remove the batteries, and put them back in reverse polarity: negative terminals facing positive. After 5 seconds, reinsert them the right way.Nov 3, 2021
What does red light on heater mean?
The heater's red light being on is a good thing. If it's completely off, the heater has lost power. If you notice the red light isn't on or it's flashing, contact a professional HVAC specialist to pinpoint the reason and make the necessary repair.Mar 1, 2019
Why does Honeywell thermostat light up?
If your thermostat is wired directly into your home's electrical system, a blank screen indicates there is no power going to the unit, which means there may be a tripped breaker or a problem with the wiring. ... If this doesn't resolve the issue, have the thermostat replaced.
How do I know if my Honeywell thermostat is working?
Test the Settings on Your Analog Honeywell Thermostat Most analog thermostats have one switch for indicating heat, cool, and off and a second switch for turning the fan on auto or off. Turn the thermostat to heat and turn the temperature up to see if it turns on. If it does, your heater is working.May 12, 2019
What does red light mean on Honeywell thermostat?
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. ... When this happens, the indoor unit tends to keep on running because the indoor unit doesn't know there is a problem.
Why does my AC have a red light?
Blinking red lights are often a sign that something is going wrong. If you see this kind of light on your AC unit thermostat, it might not mean that there's a major problem. The most likely reason that this red light has started blinking is that your outdoor AC unit has shut off.Apr 7, 2021
What do the colors mean on a thermostat?
The wires are typically arranged as follows: red for 24-volt hot, white for heat, yellow for cooling, green for the fan, and blue for common (although the common wire may be a different color). You can also refer to the Conductor Color Chart (see Chart 6, thermostat wire).