To Next PageTo Next PageWhy is my Lennox X4147 heating or cooling not coming on?
If the heating or cooling isn't activating on your Lennox Thermostat, it could be due to a few reasons. The thermostat's minimum-off time might be activated; wait up to 5 minutes for the system to respond. Also, ensure that the system selection is set to heat or cool and verify that the system type selection is correct by checking installer setup number 0170.
Why is my Lennox X4147 Thermostat display not coming on?
If the display on your Lennox Thermostat isn't turning on, the thermostat might not be receiving power. Make sure there is 24V between the R and C terminals and that the batteries are properly installed.
What to do if my Lennox X4147 is not responding when I press the touch screen?
If your Lennox Thermostat's touch screen isn't responding, the keypad might be fully locked. Check installer setup number 0670 and change the keypad lock option if necessary.
What to do if my Lennox X4147 Thermostat is calling for heat or cool, but the HVAC system isn't operating?
If your Lennox Thermostat indicates it's calling for heat or cool but the HVAC system isn't responding, the heating or cooling equipment might not be operating. First, check the wiring. Second, verify that the system type is correctly selected in installer setup number 0170. Finally, verify the equipment's operation in system test mode.
Why is my Lennox Thermostat not changing temperature settings?
If your Lennox Thermostat isn't allowing you to change temperature settings, it could be due to a couple of reasons. One possibility is that you've reached the upper or lower temperature limits. Check the temperature setpoints and installer setup numbers 0600 and 0610, modifying them if needed. Another reason might be that the keypad is fully locked. In this case, check installer setup number 0670 and change the keypad lock option if necessary.
General| Product Type | Thermostat |
|---|---|
| Connectivity | Wired |
| Voltage | 24V |
| Features | Touchscreen |
| Function | Heating and Cooling |
| Wireless Communication | No |
Overview of the 3 Heat / 2 Cool Programmable Touch Screen Thermostat.
Configuring dual fuel heat pump with auxiliary heat.
Heating operation based on outdoor temperature relative to balance point.
Operation modes for emergency heating.
Configuring electric auxiliary heat with outdoor temperature sensor.
Heating operation based on outdoor temperature relative to lock-out temperatures.
Operation modes for emergency heating.
Steps for accessing and navigating the installer set-up menu.
Reference table for installer set-up numbers and their descriptions.
