Toshiba Carrier / Toshiba Carrier 26 High Wall
Toshiba Carrier P26 error code
The Toshiba Carrier table lists P26 as outdoor inverter Idc activated. It points to IGBT, outdoor PCB, inverter wiring, and compressor, and says short-circuit protection for compressor drive circuit devices was activated.
- Urgency
- stop use
- Verified
- Jul 31, 2026
- Fix path
- Technician
What it means
The Toshiba Carrier table lists P26 as outdoor inverter Idc activated. It points to IGBT, outdoor PCB, inverter wiring, and compressor, and says short-circuit protection for compressor drive circuit devices was activated.
Urgency
Likely causes
- Short-circuit protection activated in the compressor drive circuit
- The IGBT or inverter wiring needs service
- The outdoor PCB or compressor circuit needs service
Homeowner fix
Turn the system off. Do not keep resetting it and do not open the outdoor unit.
When to call a pro
Call a licensed HVAC technician for P26. Tell them Toshiba Carrier identifies P26 as outdoor inverter Idc short-circuit protection.
This code points to compressor and electrical or inverter work - get repair quotes from contractors in your area.
Get repair quotesRepair vs replace
Inverter and compressor-drive repairs can be costly. Compare replacement if compressor or inverter replacement is required on an older unit.
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 IGBT, inverter wiring, compressor drive circuit, compressor, outdoor PCB, and Idc protection trigger conditions. 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 P and twenty six 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