- What is the purpose of RESET on the programmable units?
- How long do the batteries last?
- How do I change the batteries?
- Are there two or three positions for the FAN switch?
- What is PROGRAM LOCK?
- Why does the display show "1:30 60°" and will not change?
1. What is the purpose of RESET on the programmable units? BACK TO TOP
RESET cancels any display information and returns the thermostat to the default time / temperature and program. RESET is suggested if you want to "start over" for programming, or if the thermostat display is showing something unusual or if the system is operating erratically. Note: the thermostat requires reprogramming after pressing RESET.
2. How long do the batteries last? BACK TO TOP
All our programmable units are battery-operated. If using good quality brand, a set of batteries typically operate the thermostats 10-12 months. Therefore, they should be replaced regularly once a year. If using a lesser quality brand, more frequent replacement may be necessary.
3. How do I change the batteries? BACK TO TOP
The batteries are located on the back side of the front of the thermostat. You will remove the thermostat from the subbase, take the old batteries out, insert the new batteries. You will have 1 minute to make the replacement without losing the current program.
Some of the models (TX1000) have the batteries located on the front of the thermostat, behind a small door at the bottom. You will open the battery compartment door, remove the old batteries and insert the new batteries. Then close the door. Again, the thermostat will retain the current program for about 60 seconds while changing the batteries.
4. Are there two or three positions for the FAN switch? BACK TO TOP
The word "FAN" identifies the switch. There are only 2 positions. AUTO allows the fan to come on and cut off with the call for heating or cooling. The ON position calls for the fan (blower, air handler) to run continually even if no heating or cooling are being used.
5. What is PROGRAM LOCK? BACK TO TOP
This feature locks the display so that it cannot be changed with any of the buttons. There will be an icon of a padlock that appears on the display when in a locked mode. On most models, keyboards can be locked and unlocked by pressing "Next" "Next" "Next" "Hold".
6. Why does the display show "1:30 60°" and will not change? BACK TO TOP
This is a display tape to show how the screen will appear when the batteries are installed. Just start at the corner of the tape and peel it off.