Troubleshooting steps
Check sensor operation verify actual temperature replace sensor if faulty
HVAC Error Codes
SL – Sensor low
Sensor reading low
Details
Sensor is reading lower than expected.
Error typewarning
MeaningSensor reading
Typical causesSensor fault low temperature actual low temperature
SolutionsCheck sensor operation verify actual temperature replace sensor if faulty
Severitymedium
Catalog references
Where this appears
TraneSL
Utilities
Copy-paste helpers
Browse More
Explore HVAC Error Codes
View all 526 hvac error codes codes
FAQ
Common questions
Which sensor?
Check all temperature sensors to identify which is reading low.
Community
Discussion & Experiences
Share your experience, solutions, or ask questions about this error code. Help others troubleshoot!
Loading comments...