To bypass a program on your Aprilaire thermostat and maintain a constant temperature, press the Hold button.
To permanently turn off the schedule on an Aprilaire thermostat, the easiest method is to set a "Permanent Hold" using the front panel buttons. Alternatively, you can disable the programming feature in the advanced installer setup menu so it acts as a non-programmable thermostat.
The reset button located under the battery cover can be used to reset the thermostat back to factory defaults.
To turn off a program on your thermostat, the easiest method is to use the Hold or Override feature, which locks the thermostat at your current desired temperature. For a permanent fix, you can usually disable the schedule completely via the system settings or by doing a factory reset.
Overriding an Aprilaire thermostat is a simple process that lets you adjust the temperature without permanently changing your programmed schedule. Whether you need a quick temporary adjustment or a longer-term change, you can easily bypass the schedule using the methods below.
To disable a thermostat schedule, the easiest permanent method is setting a permanent "Hold" (indefinite temperature override). Alternatively, you can disable program mode in your system settings or companion app.
To clear settings and perform a factory reset, choose the method that matches your thermostat type:
To reset a programmable thermostat, choose the method that best matches your needs:
To permanently ignore the schedule, press up or down until the desired temperature is displayed. Then, press the Hold button to maintain the new temperature indefinitely. The word Hold will appear on the screen. Press the Run button if you wish to cancel either override and resume the schedule.
The reset button's location depends on your thermostat type. For older models, it is usually a recessed button on the circuit board (often behind the faceplate) or a dedicated button on the front or side. For modern smart thermostats, you typically reset the device through the digital menu.
During the winter, set your AprilAire humidistat between 30% and 40%. Because ideal humidity fluctuates with outdoor weather to prevent window condensation, lower the setting to 25% when temperatures drop near freezing, and down to 15-20% during extreme cold spells (below 10∘F10 raised to the composed with power F10∘F).
Press the “Menu” button on your thermostat. Use the arrow keys to scroll to “Reset” and select it. Choose “Factory Reset” to restore default settings. After resetting, you'll need to reconfigure your desired schedules.
Setting your thermostat at a consistent temperature can also help prevent short cycling. Avoid adjusting the temperature drastically or frequently, as this can cause your furnace to cycle more frequently. Instead, aim for a comfortable temperature and leave it at that setting to minimize unnecessary on-off cycles.
To start, set dial to “normal” selection, if you feel that you have a tight home, set to “5” in the normal range, “4” if you feel you have average home and “3” if you have an older home with looser construction. After allowing to operate for 24 to 48 hours, you may notice that minor adjustments may need to be made.
Switch the thermostat to the off position. Locate the breaker that powers your HVAC system and turn it off. Wait 30 seconds and turn the breaker back on. Turn your thermostat back on and confirm it has reset properly.
Pushing the reset button on a thermostat clears errors and restores communication with your HVAC unit. However, depending on the type of reset, it will usually erase all custom schedules, temperature settings, and Wi-Fi configurations.
A standard thermostat reset takes just 30 seconds to 5 minutes, depending on the model.
To turn off a program on your thermostat, the easiest method is to use the Hold or Override feature, which locks the thermostat at your current desired temperature. For a permanent fix, you can usually disable the schedule completely via the system settings or by doing a factory reset.
Answer. To take your thermostat out of program mode, locate the "Program" button on your device and press it to access the settings. Use the arrows or adjustment buttons to navigate to "Manual" or "Hold" mode, which will allow you to set the temperature manually without following the programmed schedule.
Why you might need to reset/reboot your HVAC thermostat
The reset button located under the battery cover can be used to reset the thermostat back to factory defaults.
To remove the programmed schedule on the Aprilaire 8400 thermostat, press the 'Menu' button to access settings. Use the arrow keys to find 'Program' or 'Schedule' options. Select 'Off' or 'Hold' mode to disable automatic temperature changes.
Remove the thermostat cover by either snapping it off or unscrewing it, depending on the model. Most modern thermostats will have a clearly marked reset button inside the panel. It's usually small and recessed, so you might need a pointed object like a paperclip to press it.