When there is no power supply, it may lead to the blinking of your honeywell.

Heat on flashing honeywell thermostat. Next, you must determine if your unit is cooling any air at all or not. One of the most common causes of thermostat blinking is a power outage. Solve the honeywell thermostat flashing problem.

Imagine the discomfort we would have to endure in the summer without thermostats. Here is what you need to do to check this: To bypass the time delay feature on a honeywell thermostat, follow these steps:

All you need to do is change the batteries in the thermostat. When a honeywell thermostat is in setup mode it normally. Honeywell thermostat says cool on blinking or heat on flashing, but not working after changing batteries.

If the “cool on” indicator blinks for much longer than 5 minutes and you do not feel cool air coming through your. Bring down the temperature to the lowest degree. The problem most likely lies in the fact that the aux.

Luckily this is an easy enough thing to fix. Take a look at the display to see if the “battery low” light is flashing. Your honeywell thermostat can also display “cool on” if your ac.

9 steps to troubleshoot a blinking “cool on” indicator. 1.with a heat pump installation process, blinks are replaced with “flashing.”. The “cool on” message will appear on your honeywell thermostat if the batteries are dying or there is faulty wiring.