Outdoor Temperature Sensor; Troubleshooting Guide - Trane XT302C Installer's Manual

XT302C DELUXE PROGRAMMABLE HEAT-COOL THERMOSTAT
DEVICE INFORMATION
SELF-TEST (70)
1. Press Temp and
Time to access the thermostat information.
2. Press Increase to display the production date code
in a 3-digit format. The first two digits represent the
month and the third digit represents the last digit of the
year (Example: 128=December 1998).
3. Press Increase again to display the software
identification code.
(Example: 200 = software ID code 200)

TROUBLESHOOTING GUIDE

Symptom
Display will not come Thermostat is not being
on. powered.
Temperature display is Room temperature
incorrect. display has been
reconfigured.
Thermostat is configured
for F or C display.
Bad thermostat location.
Temperature Internal temperature
displaying digits as measurement failure.
dashes (---).
The upper or lower
Temperature settings
temperature limits were
will not change.
reached.
(Example:
Cannot set the
The setpoint temperature
heating higher or the
range stops were
cooling lower.)
configured.
Pub. No. 18-HD25D7-5
69-1213—1 (T8624)
keys simultaneously, then press
M4934
M17112
M17113
Possible Cause
Check for 24 Vac between R and W terminals.
Check if the circuit breaker is tripped—reset the circuit breaker.
Check if the system fuse is blown—replace the fuse.
Check if the power switch on the HVAC equipment is in the
Off position—set to the On position.
Check wiring between thermostat and HVAC equipment—replace any
broken wires and tighten any loose connections.
If 24 Vac is present, proceed with troubleshooting.
Enter Installer Setup number 37 and reconfigure the display.
Enter Installer Setup number 14 and reconfigure the display.
Relocate the thermostat.
Contact distributor or retailer.
Check the temperature setpoints:
Heating limits are 55 to 85 F (13 to 29 C).
Cooling limits are 65 to 99 F (18 to 37 C).
Check Installer Setup numbers 34 and 35 and reconfigure the
setpoint stops.
4. Press Increase
number (Example: 001=Revision number 1).
5. Press the Increase
identification number. (Example: 314 = Model ID 314)
6. Press Run Program to exit the self-test. The self-test
mode times out 5 minutes after the last key press.
CHECKOUT

Outdoor Temperature Sensor

(optional accessory)
Expose the outdoor temperature to outdoor air for a minimum
of five minutes before reading.
Action
10
again to display the software revision
M10229
again to display the model
M4933A
( continued )