Toshiba error codes

About error codes?

Error codes help you know when your AC system needs to be repaired or isn’t working as intended. Each error code has a meaning to help you understand the problem and what needs to be done to fix it.

Below are the error codes for Toshiba systems and the matching explanation.

How to fix an error code

1. Try to reset your system as a first step

As a first step, reset your system, which will delete your air conditioner’s on board memory. We recommend trying this step before spending money on a service call.

Separate your air conditioning system from its power supply. Unplug it from a power point, turn off the isolator next to the outdoor unit or shut down your house’s power from the electrical board. Then leave it for 15 to 30 minutes.

2. Call a technician who can solve the problem for you

Have an expert look into the issue. This will make sure you don’t accidentally cause further damage to your air conditioning system.

Table of Error Codes

E01: No communication between remote controller and indoor unit.

E02: Local controller failure – unable to transmit

E03: Master indoor unit receives no data to A-B

E04: Indoor unit (except twin slave) receives no communications from outdoor unit; can also include klixon on discharge pipe of outdoor unit

E08: Duplicated indoor unit address

E09: 2 local controllers connected on a group – both configured as masters

E10: Indoor unit PSB failure

E18: Communications failure between master indoor unit and slave indoor unit or units

F01: Indoor unit TCJ (Liquid) sensor error (Open or Closed circuit – resistance is measured in kW

F02: Indoor unit TC2 (Vapour) sensor error (Open or Closed circuit – resistance is measured in k

F04: Outdoor unit TD (Discharge) sensor error (Open or Closed circuit – resistance is measured in kW

F06: Outdoor unit TE (Coil) sensor error (Open or Closed circuit – resistance is measured in k

F08: Outdoor unit TO (Ambient) sensor error (Open or Closed circuit – resistance is measured in kW

F10: Indoor unit TA (Return Air) sensor error) Open or Closed circuit – resistance is measure in kW

F29: Indoor unit PCB failure

H01: Outdoor unit inverter compressor over current detected

H02: Master outdoor unit over current detected shortly after start up

H03: Current detected on Master outdoor unit whilst idle

H06: Outdoor unit Low pressure detected by Ps sensor (0.2 bar -n 2.9 psig)

L03: Indoor unit Duplicated master indoor units in a group

L07: Indoor unit in a group of units previously addressed as a single unit – check addressing

L08: Indoor units addresses not set – check addressing

L09: Indoor units capacity not set (check DN Code 11)

L29: Outdoor unit IPDU error (Number of detected IPDU units is reduced)

L30: Input on indoor PCB CN80 circuit for 1 minute

L31: Outdoor unit PCB error

P01: Indoor unit fan motor error

P03: Outdoor unit High discharge temperature (TD1 exceeded 115°C)

P04: Outdoor unit high-pressure switch activated (Detected by high temperature on TE sensor on digital/super digital inverter units)

P07: Outdoor unit PCB heat sink overheated (Temperature over 90°C recorded)

P10: Indoor unit Float switch activated

P12: Indoor unit fan motor error – detected by feedback circuit

P19: Wrong change in temperature recorded (4 way valve error)

P22: Outdoor unit fan motor IPDU error

P26: Outdoor unit Giant transistor short circuit

P29: Outdoor unit Compressor error detected by feedback circuit

P30: Indoor unit Group control follower unit error / duplicated central control addresses

P31: Indoor unit PCB error

C05: Central control Sending error in TCC-Link central control device

C06: Central control Receive error in TCC-Link central control device

C12: Batch alarm for general purpose equipment interface

Digital/Super digital “0-1-2-3” series data

Indoor Data

00: Room Temp. (Remote Controller) (°C)

01: Room Temp. (Remote Controller) (°C)

02: TA Return Air Temp. (°C)

03: TC Coil – Vapour Temp. (°C)

04: TCJ Coil – Liquid Temp. (°C)

Outdoor Data  

60: TE Sub-cooled Liquid Temp (°C)

61: TO Ambient Temp. (°C)

62: TD Discharge Temp. (°C)

63: TS Suction Temp. (°C)

65: THS – Inverter Heat Sink Temp. (°C)

Digital/Super digital “4” series – Indoor Data

00: Room Temp (Control Temp) (°C)

01: Room Temp. (Remote Controller) (°C)

02: TA Return Air Temp. (°C)

03: TC Coil – Vapour Temp. (°C)

04: TCJ Coil – Liquid Temp. (°C)

07: Fan Speed (rpm)

F2: Fan Run Time (x 100h)

F3: Filter Duration Timer (x 1h)

F8: Discharge Temp. (Indoor – If fitted) (°C)

60: TE Sub-cooled Liquid Temp. (°C)

61: TO Ambient Temp. (°C)

62: TD Discharge Temp. (°C)

63: TS Suction Temp. (°C)

65: THS – Inverter Heat Sink Temp. (°C)

6A: Operation Current (A)

70: Compressor Frequency (Hz)

72: Fan Speed (Lower) – (rpm)

73: Fan Speed (Upper) – (rpm)

F1: Compressor Run Time (x 100h)

VRF Indoor data for Mini SMMS / SMMS / SMMSI & SHRM equipment

00: Room Temp (Control Temp) (°C)

01: Room Temp. (Remote Controller) (°C)

02: TA Return Air Temp (°C)

03: TCJ Coil – Liquid Temp. (°C)

04: TC2 Coil – PMV Pipe Temp. (°C)

05: TC1 Coil – Vapour Temp (°C)

06: Indoor Discharge Temp (If Used) – (°C)

08: PMV Position (0 – 10)

0A: Number of Connected Indoor Units (No.)

0b: Indoor Capacity (x 10 = HP)

0C: Number of Outdoor Units (No.)

0d: Outdoor Capacity (x 10 = HP)

VRF Outdoor data for Mini SMMS / SMMS & SHRM equipment

*0: Td1 – Compressor 1 Discharge Temp. (°C)

*1:  Td2 – Compressor 2 Discharge Temp. (°C)

*2: Pd – High Pressure Sensor (Mpa)

*3: Ps – Low Pressure Sensor (Mpa)

*4: TS – Suction Temp. (°C)

*5: TE – Outdoor Heat Exchanger Temp. (°C)

*6: TL – Liquid Temp. (°C)

*8: TU – Low Pressure Saturated Temp. (°C)

*9: Compressor 1 Current (A)

*A: Compressor 2 Current (A)

*b: PMV1 + 2 Opening (0 – 100)

*d: Compressor 1, 2 ON/OFF

*E: Outdoor Fan Mode (0 – 31)

*F: Outdoor Unit Size (HP)

Note. *Would be replaced with 1, 2, 3 or 4 to obtain data from respective outdoor unit.

VRF Outdoor data for SMMSI equipment

*0: Pd – High Pressure Sensor (MPa)

*1: Ps – Low Pressure Sensor (MPa)

*2: Td1 – Compressor 1 Discharge Temp. (°C)

*3: Td2 – Compressor 2 Discharge Temp. (°C)

*4: Td3 – Compressor 3 Discharge Temp. (°C)

*5: TS – Suction Temp. (°C)

*6: TE1 – Outdoor Coil Temp. (°C)

*7: TE2 – Outdoor Coil Temp. (°C)

*8: TL – Liquid Temp. (°C)

*9: TO – Outdoor Ambient Temp. (°C)

*A: PMV 1+2 Opening

*B: PMV 4 Opening

*C:  Compressor 1 Current (A)

*D: Compressor 2 Current (A)

*E: Compressor 3 Current (A)

*F: Outdoor Fan Current

#0: Compressor 1 Revolutions (rps)

#1: Compressor 2 Revolutions (rps)

#2: Compressor 3 Revolutions (rps)

#3: Outdoor Fan Mode

#4: Compressor IPDU 1 Heat Sink Temp. (°C)

#5: Compressor IPDU 2 Heat Sink Temp. (°C)

#6: Compressor IPDU 3 Heat Sink Temp. (°C)

#7: Outdoor Fan IPDU Heat Sink Temp. (°C)

#8: Heating/Cooling Recovery Controlled

#9: Pressure release

#A: Discharge Temp. Release

#B: Follower Unit Release

#F: Outdoor Unit Size (HP)

Note: *Would be replaced with 1, 2, 3 or 4 to obtain data from respective outdoor unit.
# would be replaced with 5, 6, 7, 8 to obtain data from outdoor units 1, 2, 3 or 4