Trane Error 79. Im getting three flashing red lights on my Trane XR95 which indicates a Sita is a seasoned professional with deep roots in both the HVAC and tech industries If the outside AC unit is not running, and the thermostat is set for cooling then code 79 means that the low pressure switch on the outside unit has tripped
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16 to 20 seer low pressure opened 3rd time hard lockout Then let's hope that's all that was wrong! These cool a room that have High Pressure Sodium lighting on a timer
Decoding Trane XV90 Error Codes A Comprehensive Guide for Homeowners
Disclaimer: Information in questions, answers, and other posts on this site ("Posts") comes from individual users, not JustAnswer; JustAnswer is not responsible for Posts. If the outside AC unit is not running, and the thermostat is set for cooling then code 79 means that the low pressure switch on the outside unit has tripped usually due to a clogged air filter OR, cooling coil iced, also caused by setting the thermostat below 71F on a cool.
TRANE Diagnostic Fault Codes YouTube. When those run (all night) these units run 24/7 cycling between the 1st and 2nd stage, mostly 2nd stage. This has happened in the spring for the past three years and goes away without returning after a few days of troubleshooting
My trane comfortlink II system has an error message err 79 YouTube. This fault code occurs when the low voltage line from furnace lacks power In this case, the entire furnace will need to be checked to locate the problem.