Toshiba Carrier E01 error code

What it means

The Toshiba Carrier troubleshooting table lists E01 as no header remote controller. It points to incorrect remote controller setting, a header remote controller not being set, or no signal being received from the indoor unit.

Urgency

Likely causes

1. The header remote controller was not set during controller setup
2. Two wired remote controllers are configured incorrectly
3. The remote controller is not receiving a signal from the indoor unit

Homeowner fix

Power cycle the system once if you can do that safely. Do not open the indoor unit or change wired-controller address settings.

When to call a pro

Call a licensed HVAC technician if E01 returns. Tell them Toshiba Carrier lists E01 as no header remote controller or incorrect header controller setup.

Repair vs replace

Controller setup and wiring issues are usually repairable. Replacement is rarely considered unless a control board or controller has failed on an older 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: check remote-controller header setting, double-remote-controller setup, remote wiring, indoor PCB, and controller signal path. 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 one 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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