If your honeywell thermostat is not working and there is no display, we recommend you work through the following troubleshooting steps.

Honeywell thermostat flashing return. You may also check and reconfigure the clock settings to make it set accordingly. But figuring out how it worked wasn’t. 1.with a heat pump installation process, blinks are replaced with “flashing.”.

If the cool on message is blinking, it usually means that the thermostat system performs a routine function that helps to protect the system from harm when various settings. The “cool on” message on a honeywell thermostat is also known as “delay mode”. Dirty coils can cause honeywell thermostat flashing “cool on”.

In that case, you’ll just have to set the temperature, and then press the key under “hold” to activate the “temporary hold” feature. There might be two reasons in honeywell thermostat’ blinking: Luckily this is an easy enough thing to fix.

The honeywell cool on flashing is very safe to use and zip can restore its value at any time. After years or months of work, dirt and debris will eventually accumulate on the the condenser or evaporator coils preventing. How to reset honeywell thermostat.

When a honeywell thermostat is in setup mode it normally. If the thermostat is installed in this. Again, depending on what model honeywell thermostat you’re.

Why is the cool on, heat on, snowflake, or flame blinking on the thermostat display? The reason the light is flashing is that the power outage has switched the thermostat back to setup mode. Do the same with the up arrow button.