Trane Error Code J2.: AOC FB jumper pin engaged (A1000BA) (AC)
Trane error code J2. on a air conditioner means: AOC FB jumper pin engaged (A1000BA). It is also called Trane diagnostic code J2..
Homeowner? What Trane code J2. means for you
Usually minor Your air conditioner is reporting: AOC FB jumper pin engaged (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 J2. mean?
Table lists the FB jumper engaged as a Run status with no fault entry.
Applies to: 5TTR7 A-C / 5TWR7 heat pump multi-speed outdoor drive (AOC)
Trane models that use code J2.
5TTR7024A5TTR7036A5TTR7048A5TTR7060A
Other Trane AC codes
All Trane Air Conditioner error codes →
Trane code J2.: homeowner questions
What does Trane code J2. mean?
AOC FB jumper pin engaged (A1000BA). Table lists the FB jumper engaged as a Run status with no fault entry.
Is it safe to keep using my air conditioner with code J2.?
Usually yes. Code J2. is normally minor, but if it keeps coming back have it checked.
Can I reset Trane code J2. myself?
You can try one reset (power off for 30 seconds, then on). If Trane code J2. comes back, the cause is still there and a licensed technician should check it.
Who can fix Trane code J2. 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
- Not cooling All brands · Air Conditioner
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.