It means any malfunction triggers.

Honeywell pro series thermostat blinking cool on. Sometimes “cool on” icon on your honeywell thermostat is. Check whether the thermostat is in setup mode or clock set. Honeywell thermostat says cool on blinking or heat on flashing, but not working after changing batteries.

Most of the time, the issue of honeywell thermostat flashing cool on after changing batteries will be resolved by using the tips above. This can cause the “cool on” light to blink repeatedly at you. Once you’ve set up your thermostat again, this problem should solve itself.

Apart from that, there are. The reason the light is flashing is that the power outage has switched the thermostat back to setup mode. It’s also worth checking the thermostat’s time settings.

This delay is to protect your equipment from short cycling. The cool on message also appears on screen when ac gives a 5. Dirty air conditioning coils can also lead to a honeywell thermostat blinking cool on.

If you find the honeywell thermostat flashing “cool on”. If your digital thermostats are flashing with “cool on” error messages, this usually indicates an issue with the unit not functioning properly. First, the ac system is kickstarting.

This will take approximately around 10 minutes giving time to. It is kickstarting the cooling process. If the “cool on” indicator blinks for much longer than 5 minutes and you do not feel cool air coming through your system, there you need to troubleshoot the issue.