To properly detach a Pro1 thermostat from its sub-base  gently pull from the bottom of the thermostat.  See the below example.

The thermostat can be reset by power cycling.  Power cycle the thermostat by removing if from the subbase and remove the batteries (some thermostats will not have batteries). Wait 10 seconds and then replace the batteries and place the thermostat back on the subbase.

The Pro1 professional thermostat systems are designed to give you the best technology of today and the flexibility for easy upgrading in the future.  Our innovative design always has the same footprint so you never have to worry about wall marks to repair if you upgrade to a new model.  Your Heating and Air Conditioning technician can help you upgrade.

Auto-changeover is a feature on some of our models that automatically selects heating or cooling based upon your program settings.  The user sets the program for heating and for cooling and then put the thermostat in “Auto” mode on the system switch.  The thermostat will then use the programmed settings to turn on heating or cooling as needed.

When in auto-changeover (auto selected with the system key) mode there must be a minimum of a 3 degree dead-band between the heating and cooling setpoint. For example, if the heating setpoint for a given time period is 70 degrees then the cooling setpoint must be 73 degrees or higher.

Your cooling setpoint must always be higher than your heating setpoint for a given time period.

If “Heat” or “Cool” is flashing while in Auto mode, this means that the last time your system was running, it was in that mode. 

Many Pro1 programmable thermostats have a morning recovery feature that will turn on your heating or cooling before the start time of your wake program so that the room temperature is near your wake set point temperature at the time you selected for the wake time period.

When in auto-changeover (auto selected with the system key) mode there must be a minimum of a 3 degree dead-band between the heating and cooling setpoint. For example, if the heating setpoint for a given time period is 70 degrees then the cooling setpoint must be 73 degrees or higher.

Your cooling setpoint must always be higher than your heating setpoint for a given time period.

If “Heat” or “Cool” is flashing while in Auto mode, this means that the last time your system was running, it was in that mode. 

Some Pro1 thermostats have built in delays that will last for 5 minutes or longer before heating or cooling is turned on. One reason this feature is used is to help protect your system against short cycling.  Your heating and cooling professional knows how to use these features to your best advantage.  

If you see a FAN, HEAT or COOL icon flashing, that means it is in one of these delays.  The icon will quit flashing when the delay has ended.

Some Pro1 thermostats have a built in minimum run time feature that will make sure your system always runs for at least 5 minutes every time your system turn on.  This feature is often used to help remove humidity and to keep your system from turning on and then off too quickly.

Our programmable thermostats have an override feature that lets you override the program temporarily or permanently.  Your thermostat will be in permanent override if you press the up or down temperature keys and then press the “hold” key. You will notice the word “hold” near your setpoint and now your thermostat will stay at your setpoint temperature until you press “run sched” or turn the system switch to “off”.

Your display will be blank except for the low battery icon as a final warning to replace the batteries. You should replace the batteries immediately. Your display will return to normal operation after the batteries are replaced.

Some Pro1 thermostats will turn off the display light when the batteries are getting low. The display light will return to normal operation after the batteries are replaced.

All Pro1 thermostats use 2 AA batteries.  We recommend Duracell® or Energizer® brand batteries for the best performance.

Open the door on the front of the thermostat.  Replace with 2 high quality AA Batteries (Duracell or Energizer).  If you don’t see batteries behind the door on the front, pull the thermostat off its sub-base with a firm tug to access the batteries at the back of the thermostat.

If your installing contractor has configured the thermostat to remind you when your filter needs to be changed, you will see “FILt” in the display when it is time to change your filter.  

After your have changed your filter and reset your Filter Change Reminder, “FILt” will disappear and not appear again until it’s time to change your filter again.

To reset the reminder:  

600 Family Models - hold the Program and Time button down for 3 seconds.

700 Family Models will have a column of buttons on the left side of your thermostat – hold the second button from the top down for 3 seconds.

801 Model will have 2 buttons behind the door – hold down the one on the left(Fan Button) for 3 seconds.

Other 800 Family Models will have 6 buttons behind the door – hold down the second button from the left for 3 seconds.

900 Family Models – hold down the “Clean” button for 3 seconds.