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Here is a list of common error codes for Trane HVAC systems:

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  1. E1 – High limit control open
  2. E2 – High limit control short
  3. E3 – Open or shorted indoor blower relay
  4. E4 – Open or shorted outdoor compressor relay
  5. E5 – Outdoor fan fault
  6. E6 – Indoor fan fault
  7. E7 – Thermostat fault
  8. E8 – Open or shorted pressure switch
  9. E9 – System refrigerant high pressure
  10. E10 – System refrigerant low pressure
  11. E11 – Flame rollout switch fault
  12. E12 – Ignition control fault
  13. E13 – Low voltage to control
  14. E14 – Compressor protection device fault
  15. E15 – Reverse polarity
  16. E16 – Voltage fault
  17. E17 – Current fault
  18. E18 – Open or shorted indoor coil temperature sensor
  19. E19 – Open or shorted outdoor ambient temperature sensor

These error codes may vary depending on the specific model and type of Trane HVAC system. It is important to refer to the owner’s manual for specific error codes and troubleshooting procedures.