Toshiba Carrier H02 error code

What it means

The Toshiba Carrier table lists H02 as outdoor compressor lock. It points to the compressor circuit and says compressor lock was detected.

Urgency

Likely causes

1. The compressor lock condition was detected
2. The compressor circuit needs service
3. The outdoor inverter or compressor wiring 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 H02. Tell them Toshiba Carrier identifies H02 as outdoor compressor lock.

Repair vs replace

A locked compressor can be a major repair. Compare replacement if compressor replacement is required, especially on an older out-of-warranty system.

• 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 compressor lock condition, compressor circuit, inverter output, wiring, and outdoor control diagnostics. 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 H 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

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