Trane TCONT900AC43UA - User Manual

Other manuals for Trane TCONT900AC43UA

Service Guide336 pages

Installer's Guide24 pages

Questions and Answers:

A
Abigail OrtizSep 10, 2025
What to do if room temperature overshoots on Trane Control Panel?
- B
  Brian ChungSep 12, 2025
  If the room temperature overshoots when the Heat/Cool setting is changed by more than 2 degrees on your Trane Control Panel: * The heating/cooling equipment might be oversized for the current conditions, preventing the control from responding quickly enough to prevent overshooting. Set the Control Response rate to “Aggressive” using ISU 0680 or 0690. * The comfort control might be improperly located. Choose a location that prevents the Comfort Control from being directly exposed to air currents from supply registers.
C
Cathy BrownAug 22, 2025
Why is the heating not coming on with my Trane Control Panel?
- M
  Megan BensonAug 23, 2025
  If your Trane Control Panel is not turning on the heat, consider the following: * Ensure the System Mode is set to Heat and that the setpoint is raised above the room temperature. * If the heating doesn't start within 5 minutes, inspect the heating equipment. * Check and repair any loose connections to the control or system. * The heating system may require professional repair.
D
Darrell ChristensenAug 25, 2025
Why is the cooling not coming on with my Trane TCONT900AC43UA?
- N
  Nathan MillsAug 25, 2025
  If your Trane Control Panel is not activating the cooling, here's what to check: * Make sure the System Mode is set to Cool and lower the setpoint below the room temperature. * If cooling doesn't start within 15 minutes, examine the cooling equipment. * Inspect and fix any loose connections to the control or system. * The cooling system might need professional repair.
M
Megan MurphyAug 26, 2025
How to fix temperature setting if it will not change on Trane TCONT900AC43UA Control Panel?
- R
  Raymond AndersonAug 27, 2025
  If you cannot adjust the temperature settings on your Trane Control Panel, consider these possibilities: * You may have reached the upper or lower temperature limits. Check the heating limits (ISU 0600), which are between 40°F - 90°F (4.4°C - 32.2°C), and the cooling limits (ISU 0610), which are between 60°F - 99°F (15.5°C - 32.2°C). * The keys may be fully locked, with “Screen Locked” displayed on the LCD. If so, unlock the keypad using ISU 0670.
K
kyle88Aug 27, 2025
Why does the fan run all the time on my Trane TCONT900AC43UA?
- D
  Dawn WilliamsAug 28, 2025
  If the fan is constantly running on your Trane Control Panel, here are a few things to check: * The fan mode might be set to ON - continuous. Change the fan mode to AUTO or CIRC. * The fan might be scheduled to run continuously. Reprogram the fan schedule if desired. * The indoor equipment may need service. Check the indoor equipment.
R
Rhonda HansonAug 29, 2025
What to do if Trane TCONT900AC43UA Control Panel does not respond to keypad screen presses?
- J
  Jennifer ArnoldAug 29, 2025
  If your Trane Control Panel isn't responding to keypad presses: * Check if the keys are locked; if “Screen Locked” is displayed, unlock the keypad using ISU 0670. * The control might need replacement due to keypad failure.
K
Kelly JamesSep 18, 2025
What to do if no equipment is running and I can't change the mode from 'OFF' on my Trane Control Panel?
- A
  Andrea WilliamsSep 18, 2025
  If no equipment is running and you cannot change the mode from “OFF” on your Trane Control Panel: * The equipment may not have been connected during Auto-Discovery mode. Check and verify the wiring connections and cycle power to the components. * Cycle the power to restart the Auto-Discovery process.
S
Scott DelgadoSep 12, 2025
Why does my Trane TCONT900AC43UA show '--' for indoor temperature?
- R
  Richard BlevinsSep 12, 2025
  If the indoor temperature display on your Trane Control Panel shows “--”, it indicates that the indoor temperature sensor is either open or shorted, requiring you to replace the control.
R
Rachel KirbySep 8, 2025
Why are the cooling cycles too fast or too slow on my Trane TCONT900AC43UA Control Panel?
- J
  Jonathan StevensSep 9, 2025
  If the cooling cycles too fast or too slow on your Trane Control Panel, the location of the control or the size of the cooling system might be the cause. To resolve this, verify and adjust cycle rates using ISU 0220 and 0230.
C
Cathy PattersonSep 5, 2025
How to calibrate indoor humidity display on Trane Control Panel?
- J
  John LopezSep 5, 2025
  If the indoor humidity display on your Trane Control Panel is incorrect, calibrate the sensor using ISU 0701.

Trane TCONT900AC43UA Specifications

General

Compatibility	Compatible with most HVAC systems
Display	Touchscreen
Wi-Fi Enabled	Yes
Programmable	Yes
Energy Star Certified	Yes
Connectivity	Wi-Fi
Remote Access	Yes
Indoor Humidity Control	Yes
Energy Monitoring	Yes
Backlight	Yes
Mounting	Wall-mounted
Series	900
Power Source	24V
Stages	Up to 2 Heat, 2 Cool