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Trane Error Code bt: Boot (A1000BA) (AC)

Updated · by Aurora Star Tech Inc.

Trane error code bt on a air conditioner means: Boot (A1000BA). It is also called Trane diagnostic code bt.

Low severityAir ConditionerAlso Heat PumpTrane 5TTR7

Homeowner? What Trane code bt means for you

Usually minor Your air conditioner is reporting: Boot (A1000BA). This code is usually informational or minor. The safe checks below often clear it; call us if it keeps showing up.

Safe things you can check yourself

  • Check the thermostat: right mode (Heat or Cool), set a few degrees past room temperature, and fresh batteries if it uses them.
  • Check both breakers and the outdoor disconnect box beside the outdoor unit; all should be ON.
  • Look at the air filter. If it is grey and clogged, replace it; a blocked filter causes many shutdowns.
  • Keep about 2 feet around the outdoor unit clear of leaves, grass and debris.
  • If you see ice on the pipes or the indoor coil, turn the system off and run only the fan for a few hours, then call a technician.
  • Try one reset: turn the power off for 30 seconds, then back on. If the code comes back, stop resetting and call a technician.

Call (647) 657-2977Book a service call

Licensed technicians serving Vaughan, Toronto and the GTA.

What does Trane error code bt mean?

Control is booting. Table lists it as a Boot mode with no fault.

Applies to: 5TTR7 A-C / 5TWR7 heat pump multi-speed outdoor drive (AOC)

Safety: Gas, electrical and refrigerant work must be done by a licensed technician. Turn off power and gas before servicing, never bypass a safety control, and always follow the manufacturer's manual for your exact model.

Trane models that use code bt

5TTR7024A5TTR7036A5TTR7048A5TTR7060A

Other Trane AC codes

CodeMeaning
2nd digit dDischarge temperature sensor fault (A1000AA board)
2nd digit EHigh drive PFC temperature protection (A1000AA board)
2nd digit FHigh drive fan IPM temperature protection (A1000AA board)
2nd digit PPressure protection (high or low) (A1000AA board)
50Limp mode (A1000BA)
60Preheating (A1000BA)
d5De-rate: drive AC input over-current
d6De-rate: high drive IPM temperature
d7De-rate: high drive PFC temperature
d8De-rate: high coil temperature
dCDe-rate: compressor over-current
ddDe-rate: high discharge temperature

All Trane Air Conditioner error codes →

Trane code bt: homeowner questions

What does Trane code bt mean?

Boot (A1000BA). Control is booting. Table lists it as a Boot mode with no fault.

Is it safe to keep using my air conditioner with code bt?

Usually yes. Code bt is normally minor, but if it keeps coming back have it checked.

Can I reset Trane code bt myself?

You can try one reset (power off for 30 seconds, then on). If Trane code bt comes back, the cause is still there and a licensed technician should check it.

Who can fix Trane code bt near me?

Aurora Star Tech Inc. repairs Trane air conditioners in Vaughan, Toronto and across the GTA. Call (647) 657-2977 or book a service call online.

Homeowner help: AC Running But Not Cooling: What to Check

Troubleshooting guides

Source: Trane 5TTR7/5TWR7 installation ODR-SVN002E-EN, Table 18 A1000BA status/fault list, p.26-27. Written in our own words as a summary; always check the original manual.

General guidance for qualified technicians. The manufacturer's installation and service manual and local codes always take priority. Aurora Star Tech is not affiliated with, endorsed by or sponsored by any equipment manufacturer; brand and model names are used only to identify equipment and belong to their owners.

Emergency HVAC Service

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