It might be a factory default that does not allow you to turn the ac lower than 69 and you have to go into the.

Honeywell thermostat won't go below 70. Check if there is loose. If that's not the case, then try the following steps: I'm sure on a real hot day it will not but on a day.

Test system by increasing the temperature. As these devices do an exceptional job at keeping us. Reasons why honeywell thermostat won’t go below 70 degrees.

Test the system by lowering the temperature. If your thermostat doesn't go above 70 degrees, or worse, is not working at all, you should do each of these until you find the culprit and fix the issue: If your thermostat falls under the honeywell 4000 series,.

Set the switch on your thermostat to “off.”. When a sensor is the issue, the. One of the most common causes of a thermostat not reaching the set temperature is a damaged or broken sensor.

Then, take a look at the steps below to reset your thermostat to the default settings. Is it set to heat or auto ( not the fan switch) will it. Use the up and down buttons on your honeywell thermostat to adjust the temperature to warmer or cooler.

If you press and hold the menu button, a reset option will appear. Verify that the thermostat is switched to cool mode and has a cooling set point below the room temperature reading. Why your honeywell thermostat won’t go below 68.