Troubleshooting   
 
 
 
 
33CONNECTSTAT43    ©2022 Carrier. 
Installation Guide    All rights reserved. 
  38 
 
 
NOTE Use this table along with the HUM/DEHUM table, if either of those functions are enabled. See HUMIDITY 
(page 29). 
 
 
 
Fault definitions 
The following Fault messages are displayed and logged in the banner during the fault condition and then sent to 
the Cloud server. 
 
Temperature reading > 122°F 
When this fault occurs, the thermostat uses the temperature reading from the 
temperature/humidity sensor as the space temperature. 
•  Temperature reading = 0  
•  Reading not available 
When this fault occurs, the thermostat uses the temperature reading from the 
temperature/humidity sensor as the space temperature. 
Remote temperature > 122°F 
NOTE Displayed only if REMOTE SENSOR is set to INDOOR or AVERAGE. 
Remote temperature = 0  
NOTE Displayed only if REMOTE SENSOR is set to INDOOR or AVERAGE. 
Humidity sensor temperature > 122°F 
NOTE Displayed only if using humidity temperature as a backup source during a 
fault condition with the primary temperature sensor.