Toshiba Carrier / Toshiba Carrier 26 High Wall
Toshiba Carrier E02 error code
The Toshiba Carrier table lists E02 as a remote controller transmission error. It says no signal can be sent to the indoor unit and lists system interconnection wires, the indoor PCB, and the remote controller as parts to check.
- Urgency
- advisory
- Verified
- Jul 31, 2026
- Fix path
- Technician
What it means
The Toshiba Carrier table lists E02 as a remote controller transmission error. It says no signal can be sent to the indoor unit and lists system interconnection wires, the indoor PCB, and the remote controller as parts to check.
Urgency
advisory
Try one safe reset. If it returns, controller wiring or electronics need service.
Likely causes
- The remote controller signal is not reaching the indoor unit
- The controller or interconnection wiring has a connection problem
- The remote controller or indoor PCB needs service
Homeowner fix
Power cycle the system once if you can do that safely. Do not open wiring covers or move controller wiring.
When to call a pro
Call a licensed HVAC technician if E02 returns. Tell them Toshiba Carrier identifies E02 as a remote controller transmission error.
This code points to electrical or inverter work - get repair quotes from contractors in your area.
Get repair quotesRepair vs replace
Remote-controller communication faults are usually repairable wiring, controller, or board issues. Replacement is only worth comparing if several control parts have failed.
See Toshiba Carrier mini-splitsYour Toshiba Carrier model
Toshiba Carrier 26 High Wall model pages in the Toshiba Carrier catalog help compare this repair path with current replacement options.
- Toshiba Carrier 26 High Wall 12,000 BTU R-454B 208/230V (RAV-HB121KRTP-UL / RAV-BP121AT2P-UL)
Toshiba Carrier 26 High Wall
- Toshiba Carrier 26 High Wall 18,000 BTU R-454B 208/230V (RAV-HB181KRTP-UL / RAV-BP181AT2P-UL)
Toshiba Carrier 26 High Wall
- Toshiba Carrier 26 High Wall 24,000 BTU R-454B 208/230V (RAV-HB241KRTP-UL / RAV-BP241AT2P-UL)
Toshiba Carrier 26 High Wall
- Toshiba Carrier 26 High Wall 30,000 BTU R-454B 208/230V (RAV-HB301KRTP-UL / RAV-BP301AT2P-UL)
Toshiba Carrier 26 High Wall
For your technician
Technician note: inspect remote-controller wiring, system interconnection wires, indoor PCB, and remote controller transmission. Page context: Toshiba Carrier maps this display to the Toshiba Carrier 26 High Wall line; source: Toshiba Carrier RAV High Wall 12K-36K Installation Manual, Section 14 Troubleshooting, Error codes and parts to be checked; display convention: match the letter E and two marker exactly before comparing neighboring codes.
Which systems show it
Toshiba Carrier 26 High Wall
Related troubleshooting
Use the symptom guide alongside the exact display code if the unit is flashing, cycling, or showing comfort symptoms.
Related codes
Source
- Document
- Toshiba Carrier RAV High Wall 12K-36K Installation Manual, Section 14 Troubleshooting, Error codes and parts to be checked