Alerts; Troubleshooting - Trane Link UX360 Installation Manual

13. Alerts

The UX360 displays two sets of alerts:
• Current Alerts: alerts which are currently
active
• Alert History: alerts that have been cleared
in the last 30 days
Each alert in the history will display the date the
alert was cleared. Current alerts will display the
date when the alert was triggered.
Select an alert code to view additional
information on that alert as well as a list of
possible causes.
All alerts are categorized by severity:
Critical
• Loss of heating/cooling operation
• Service call is required
• Alert notifications are displayed on the home
screen

14. Troubleshooting

Symptom
UX360 displays an
alert on the screen
Display will not
come on
Indoor temperature
display is incorrect
Indoor humidity
display is incorrect
Heating will not
come on
18-HD98D1-1B-EN
Possible Causes
A critical or major alert is present.
Loss of 24VAC between R & B at
the UX360 Control.
1. Indoor temperature display
needs calibration.
2. Surrounding air flow affecting
sensed temperature of the
UX360.
Indoor humidity display needs
calibration.
1. System mode is not set to Heat/
Auto or setpoint is set too low.
2. Minimum off time delay is being
enforced.
3. Heating system may require
service.
Major
• Reduced functionality - minimum operation is
possible
• Service call is not immediately required
• Alert notifications are not displayed on the
home screen
Normal
• Functionality may be lost but should recover
or the information is for diagnostic purposes/
performance monitoring
• Service call is not required
• Alert notifications are not displayed on the
home screen
Action
Navigate to the Alerts screen for a problem
description and possible cause.
Menu > System Info > Alerts
1. Check wiring between R & B.
2. Check transformer for 24VAC output.
3. Check for broken or shorted thermostat
wire.
Calibrate temperature sensor from UX360
menu.
Calibrate humidity sensor from the UX360
menu.
1. Set mode to heat and raise the setpoint
above the room temperature.
2. Wait 5 minutes and recheck heating
equipment.
3. Check/repair system.
UX360 Smart Thermostat
19