The blinking “cool on” message on a honeywell thermostat display indicates that the system is restarting, batteries need replacing in the control panel, or a fault with the.

Cool on blinking on thermostat. How to set honeywell thermostat to cool. There might be two reasons in honeywell thermostat’ blinking: Your honeywell thermostat can also display “cool on” if your ac.

After years or months of work, dirt and debris will eventually accumulate on the the condenser or evaporator coils preventing. If the thermostat is installed in this. Leave the unit for a while and check whether the system is going to start cooling or not.

Get in touch with the. However, if your thermostat keeps blinking after the reset, you may have an issue like excessive defrosting or a switch in the outside unit that is stuck open. Take a look at the display to see if the “battery low” light is flashing.

All you need to do is change the batteries in the thermostat. 1.with a heat pump installation process, blinks are replaced with “flashing.”. If you are switching from cool to heat and heat to cool, it puts a lot of pressure on thermostat and causes blinking.

However, the cool on flashing may indicate. If you wish to make your house cooler, you must manually adjust the honeywell thermostat’s temperature. Crank thermostat down to the lowest temperature.

Once he arrived, he came up plus stated that the thermostat just needed to be replaced. The first step is to determine if your system is cooling at all and if it can control it. Luckily this is an easy enough thing to fix.