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Toshiba Error Codes & Troubleshooting

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Toshiba Error Codes & Troubleshooting

Toshiba air conditioners feature cutting-edge inverter technology for efficient and quiet operation.

40 Error Codes Listed3 Critical Issues

Error Code: E01

Indoor PCB error

HIGH
Troubleshooting Steps:

Indoor unit control board malfunction. Professional replacement required.

High Priority: Professional attention recommended to prevent damage.
Call for Help

Error Code: E02

Indoor temperature sensor

MEDIUM
Troubleshooting Steps:

Indoor temperature sensor error. Check sensor and connections.

Call for Help

Error Code: E03

Indoor coil sensor

MEDIUM
Troubleshooting Steps:

Indoor heat exchanger sensor fault. Replacement may be needed.

Call for Help

Error Code: E04

Indoor fan motor error

HIGH
Troubleshooting Steps:

Indoor fan motor malfunction. Check motor and remove obstructions.

High Priority: Professional attention recommended to prevent damage.
Call for Help

Error Code: E05

Communication error

MEDIUM
Troubleshooting Steps:

Communication fault between units. Check connecting cables.

Call for Help

Error Code: E06

Outdoor temperature sensor

LOW
Troubleshooting Steps:

Outdoor temperature sensor malfunction. Check sensor operation.

Call for Help

Error Code: E07

Outdoor coil sensor

MEDIUM
Troubleshooting Steps:

Outdoor heat exchanger sensor error. Professional diagnosis needed.

Call for Help

Error Code: E08

Compressor protection

CRITICAL
Troubleshooting Steps:

Compressor protection activated. Immediate professional attention required.

Critical Issue: Turn off your system immediately and contact a professional technician.
Call for Help

Error Code: E09

High pressure protection

HIGH
Troubleshooting Steps:

High pressure switch activated. Check system pressures and airflow.

High Priority: Professional attention recommended to prevent damage.
Call for Help

Error Code: E10

Low pressure protection

HIGH
Troubleshooting Steps:

Low pressure protection activated. Check refrigerant levels.

High Priority: Professional attention recommended to prevent damage.
Call for Help

Error Code: E11

Discharge temperature sensor

MEDIUM
Troubleshooting Steps:

Compressor discharge temperature sensor fault.

Call for Help

Error Code: E12

Suction temperature sensor

MEDIUM
Troubleshooting Steps:

Suction line temperature sensor error.

Call for Help

Error Code: E13

Liquid line temperature sensor

MEDIUM
Troubleshooting Steps:

Liquid line temperature sensor malfunction.

Call for Help

Error Code: E14

Outdoor PCB error

HIGH
Troubleshooting Steps:

Outdoor unit control board malfunction. Professional replacement required.

High Priority: Professional attention recommended to prevent damage.
Call for Help

Error Code: E15

Outdoor fan motor error

HIGH
Troubleshooting Steps:

Outdoor fan motor fault. Check motor operation and obstructions.

High Priority: Professional attention recommended to prevent damage.
Call for Help

Error Code: E16

Compressor overcurrent

CRITICAL
Troubleshooting Steps:

Compressor drawing excessive current. Professional diagnosis required.

Critical Issue: Turn off your system immediately and contact a professional technician.
Call for Help

Error Code: E17

Compressor locked rotor

CRITICAL
Troubleshooting Steps:

Compressor motor locked. Immediate professional attention required.

Critical Issue: Turn off your system immediately and contact a professional technician.
Call for Help

Error Code: E18

Inverter PCB error

HIGH
Troubleshooting Steps:

Inverter control board malfunction. Professional replacement required.

High Priority: Professional attention recommended to prevent damage.
Call for Help

Error Code: E19

EEV malfunction

HIGH
Troubleshooting Steps:

Electronic expansion valve error. Professional diagnosis required.

High Priority: Professional attention recommended to prevent damage.
Call for Help

Error Code: E20

Freeze protection

MEDIUM
Troubleshooting Steps:

Indoor coil freeze protection. Check airflow and refrigerant levels.

Call for Help

Error Code: E21

Defrost sensor error

MEDIUM
Troubleshooting Steps:

Defrost temperature sensor malfunction.

Call for Help

Error Code: E22

Current sensor error

MEDIUM
Troubleshooting Steps:

Current sensing circuit malfunction. Check electrical connections.

Call for Help

Error Code: E23

Inverter overload

HIGH
Troubleshooting Steps:

Inverter overload protection. Check electrical load.

High Priority: Professional attention recommended to prevent damage.
Call for Help

Error Code: E24

DC voltage error

HIGH
Troubleshooting Steps:

DC bus voltage abnormality. Check power supply and inverter.

High Priority: Professional attention recommended to prevent damage.
Call for Help

Error Code: E25

Heat sink temperature error

HIGH
Troubleshooting Steps:

Heat sink overheating. Check cooling and ventilation.

High Priority: Professional attention recommended to prevent damage.
Call for Help

Error Code: E26

Power supply error

MEDIUM
Troubleshooting Steps:

Power supply voltage abnormality. Check electrical connections.

Call for Help

Error Code: E27

Phase detection error

MEDIUM
Troubleshooting Steps:

Power supply phase error detected. Check electrical connections.

Call for Help

Error Code: E28

Drain pump error

MEDIUM
Troubleshooting Steps:

Drain pump malfunction. Check pump operation and drainage system.

Call for Help

Error Code: E29

Float switch activated

MEDIUM
Troubleshooting Steps:

Condensate overflow protection. Check drainage system.

Call for Help

Error Code: E30

4-way valve error

HIGH
Troubleshooting Steps:

Reversing valve malfunction. Check valve operation.

High Priority: Professional attention recommended to prevent damage.
Call for Help

Error Code: E31

Remote controller error

LOW
Troubleshooting Steps:

Remote controller malfunction. Check batteries and connections.

Call for Help

Error Code: E32

Filter sign

LOW
Troubleshooting Steps:

Filter cleaning reminder. Clean filter and reset indicator.

Call for Help

Error Code: E33

Address setting error

MEDIUM
Troubleshooting Steps:

Unit address configuration error. Check DIP switch settings.

Call for Help

Error Code: E34

Refrigerant shortage

HIGH
Troubleshooting Steps:

Low refrigerant detected. Check for leaks and recharge system.

High Priority: Professional attention recommended to prevent damage.
Call for Help

Error Code: E35

Oil return operation

LOW
Troubleshooting Steps:

Oil return cycle in progress. Normal for multi-unit systems.

Call for Help

Error Code: E36

Capacity mismatch

MEDIUM
Troubleshooting Steps:

Indoor and outdoor unit capacity mismatch. Check system configuration.

Call for Help

Error Code: E37

Louver motor error

LOW
Troubleshooting Steps:

Air direction motor malfunction. Check motor and obstructions.

Call for Help

Error Code: E38

Indoor humidity sensor

LOW
Troubleshooting Steps:

Indoor humidity sensor error. Check sensor operation.

Call for Help

Error Code: E39

Power supply frequency error

MEDIUM
Troubleshooting Steps:

Power frequency abnormality. Check electrical supply stability.

Call for Help

Error Code: E40

Multiple unit system error

MEDIUM
Troubleshooting Steps:

Multi-unit system configuration error. Check unit connections.

Call for Help

Still Having Issues with Your Toshiba System?

Our certified technicians are experts in Toshiba air conditioning systems. We provide professional diagnosis, repair, and maintenance services across Melbourne.

Licensed Toshiba technicians
Same-day service available
Genuine parts and warranty
24/7 emergency service
Call 0405 133 761

Available 24/7 for emergencies

Quick Actions

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Error Severity Guide

CRITICALTurn off system immediately
HIGHProfessional attention needed
MEDIUMSchedule service soon
LOWMonitor and maintain

Safety First

  • Always turn off power before inspection
  • Never attempt electrical repairs yourself
  • Check for gas leaks if you smell refrigerant
  • Call professionals for critical errors
  • Regular maintenance prevents problems