Thermostat Display Switching to 6A? Lo: Possible Explanations (2023 Update)

It sounds like you're having an issue with your thermostat display switching from the temperature reading to "6A? Lo." This can be confusing and frustrating, but there are a few possible explanations to consider.

Low Battery: Many thermostats are powered by batteries, and if the batteries are low, this can cause the display to act erratically or switch to a different mode. Try replacing the batteries with fresh ones to see if this resolves the issue.
Wiring Issue: If the wiring to the thermostat is loose or damaged, this can cause the display to malfunction or switch to a different mode. Check the wiring connections to make sure they're secure and not damaged.
Faulty Thermostat: If the issue persists after replacing the batteries and checking the wiring, it's possible that the thermostat itself is faulty and needs to be replaced. You may want to consider contacting a professional HVAC technician to diagnose and fix the issue.

It's important to note that without more specific information about the make and model of your thermostat, it's difficult to provide a definitive answer. If possible, try looking up the user manual for your thermostat to see if there's any information on what "6A? Lo" means and how to troubleshoot it.

In summary, if your thermostat display is switching to "6A? Lo," it could be due to low batteries, a wiring issue, or a faulty thermostat. Try replacing the batteries and checking the wiring connections, and if the issue persists, consider contacting a professional HVAC technician for further diagnosis and repair.