Trane UHMB060ACV3VA Series Service Facts page 36

IFC Error Flash Codes
Service Facts
35) IFC Component Layout
36) LED Flash Codes
37) Getting started
38) 2 Flash Troubleshooting Retry and Recycle Lockout
40) 3 Flash Troubleshooting Pressure Switch Errors
41) 4 Flash Troubleshooting High Limit and Auxiliary Limit
42) 4 Flash Troubleshooting Roll Out Limit
43) 5 Flash Troubleshooting Flame Error
44) 6 Flash Troubleshooting Polarity and Ground Errors
45) 6 Flash Troubleshooting Ignitor and Triac Errors
46) 7 Flash Troubleshooting External Gas Valve Circuit Error
47) 8 Flash Troubleshooting Low Flame Sense Error
48) 9 Flash Troubleshooting Inducer Limit
49) 10 Flash Troubleshooting Blower Comm and System Comm Errors
50) 10 Flash Troubleshooting No System Clock and 24V Comm Mismatch Errors
The following pages include troubleshooting flowcharts in
reference to the modulating 95% communicating furnaces ONLY;
using the FAULT LED and the User Interface as starting points.
The information contained is for reference only and does not
cover all scenarios or problems that may be encountered by a
qualified field technician.
Only qualified technicians should should attempt to install,
troubleshoot, or repair this appliance. Failure to follow all cautions
and/or warnings could result in personal or property damage;
including death.
36
Troubleshooting Flowchart Index
UHM-DHM-SF-1H