If this doesn’t work, turn off your thermostat and inspect the batteries;

Thermostat not working after battery change. How to fix a honeywell thermostat that stops working after battery change. Check the power to the thermostat when your. Next he asked me to check the ac condensation overflow pipe to make sure that there wasn't a clog because if there is a clog the safety valve will cut off power to the thermostat.

Many honeywell thermostats need a reset after you’ve replaced the batteries. Ensure you’re using the required batteries; Here is how to perform a honeywell thermostat reset:

If pins on control panels don’t touch baseplates, the controls. Hold the “reset” button on your thermostat for 5 seconds if it’s not working after a power outage. Power cycle your thermostat 3.

How to fix a honeywell thermostat that isn’t working disconnect all of the cables from the thermostat. It’s likely due to needing a battery replacement, but there are other possible causes. Wait five minutes after removing.

Verify whether your honeywell thermostat needs a reset after a battery change. You replaced the old batteries with the wrong batteries; There are three significant reasons your thermostat isn’t working even after changing the batteries.

Make sure the thermostat switch has been set to “off.” push the battery door open by inserting a coin (or a similar alternative) into the slot. The first step that is needed to make sure that the thermostat does not turn on after recharging is that the battery lid is reinstalled. The first thing to check if the thermostat system is not turning on after a battery change is if the control panel faceplate or the battery compartment lid or tray has been.