Toshiba Carrier / Toshiba Carrier 26 High Wall
Toshiba Carrier P15 error code
The Toshiba Carrier table lists P15 as gas leakage detected. It says there may be gas leakage from a pipe or connecting part and directs checking gas leakage.
- Urgency
- stop use
- Verified
- Jul 31, 2026
- Fix path
- Technician
What it means
The Toshiba Carrier table lists P15 as gas leakage detected. It says there may be gas leakage from a pipe or connecting part and directs checking gas leakage.
Urgency
Likely causes
- Refrigerant gas may be leaking from a pipe
- A flare or connecting part may be leaking
- The refrigerant circuit needs leak testing and repair
Homeowner fix
Turn the system off, ventilate the area if you suspect a leak, and do not restart it. Do not tighten fittings or handle refrigerant lines.
When to call a pro
Call a licensed HVAC technician for P15. Tell them Toshiba Carrier identifies P15 as gas leakage detected from a pipe or connecting part.
This code points to refrigerant or sealed-system work - get repair quotes from contractors in your area.
Get repair quotesRepair vs replace
A connection leak may be repairable. Compare replacement only if a coil, compressor, or major refrigerant circuit repair is confirmed on an older system.
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: perform refrigerant leak diagnostics at pipes and connecting parts, repair leak source, evacuate, and recharge per applicable procedure. 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 fifteen 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