Maintenance And Troubleshooting; Leds; Error Codes (Display Sensor); Display Sensor: Output Values-Failure And Default Modes Of Operation - Trane Wired Temperature Sensors Installation, Operation And Maintenance Manual

Maintenance and Troubleshooting

This section describes sensor features that can be used for maintenance and troubleshooting.

LEDs

Some sensor models have LEDs. They are located on the front cover and convey the following
information:

Error Codes (Display Sensor)

For an explanation of error codes that can appear on the display, see
Display Sensor: Output Values—Failure and Default Modes of
Operation
The following table provides output values for failure and default modes of operation, which can
be used for troubleshooting.
Situation
Sensor has no power.
Thermistor in sensor has failed to either open or
close.
Setpoint potentiometer has failed to either open or
close.
BAS-SVX10C-EN
The red service LED indicates that service is needed.
Service LED (red)
• The LED may blink or stay on solid, depending on the unit controller
The green cool LED indicates that the system is in cooling mode.
Cool LED (green) • Stays on solid during normal cooling operation
• Blinks to indicate a cooling system failure
The green heat LED indicates that the system is in heating mode.
Heat LED (green) • Stays on solid during normal heating operation
• Blinks to indicate a heating system failure
The green system LED indicates the state of the system.
System LED (green) • Stays on solid to during normal operation
• Blinks to indicate that the system is in Test mode
Zone
temperature
output
Open
Open
Normal value
(See Table 1)
"Error codes, " p.
Heating
Zone setpoint setpoint
output output
Open Open
Normal value Normal value
(See Table 1) (See Table
Open Open
28.
Fan/System
output
Open
N/A
1)
N/A
29