Toshiba Carrier F10 error code

What it means

The Toshiba Carrier table lists F10 as indoor room temperature sensor TA error. It says an open or short circuit has been detected and lists the TA room temperature sensor and indoor PCB as parts to check.

Urgency

Likely causes

1. The indoor room-temperature TA sensor circuit is open or shorted
2. The TA sensor connector or harness needs service
3. The indoor PCB sensor input needs service

Homeowner fix

Power cycle once if you can do that safely. Keep the indoor unit clear of heat sources and blocked airflow, but do not open the cabinet.

When to call a pro

Call a licensed HVAC technician if F10 returns. Tell them Toshiba Carrier identifies F10 as indoor room-temperature TA sensor error.

Repair vs replace

Room sensor faults are usually repairable. Replacement is rarely justified unless an old unit also needs control-board replacement.

• 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 TA room-temperature sensor, connector, harness, sensor placement, and indoor PCB input for open/short detection. 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 F and ten 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

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