Error mode detected by indoor unit

 

Operation of diagnostic function

 

 

 

 

 

 

Judgment and measures

Check

Cause of operation

Status of

Condition

 

code

air conditioner

 

 

 

 

 

 

 

 

 

 

No communication from remote

 

 

1. Check cables of remote controller and communication adapters.

 

Stop

Displayed when • Remote controller LCD display OFF (Disconnection)

E03 controller (including wireless) and

 

communication adapter

(Automatic reset)

error is detected

• Central remote controller [97] check code

 

 

 

The serial signal is not output from outdoor unit to indoor unit.

•Defective serial sending circuit on

•Defective serial receiving circuit on indoor P.C. board

E04

Stop

Displayed when

(Automatic reset)

error is detected

•Inter-unit wire check, correction of miswiring

Check outdoor P.C. board. Correct wiring of P.C. board. 2. When outdoor unit normally operates

Check P.C. board (Indoor receiving / Outdoor sending).

Case thermostat operation

 

Displayed when

* Abnormal overheat of compressor

Stop

error is detected

 

 

1.Check case thermostat and connector.

2.Check gas leak, recharge

3.Check full open of service valve.

4.Check PMV (Pulse Motor Valve).

5.Check broken pipe.

E08

Duplicated indoor unit address

 

 

 

 

 

 

L03

Duplicated indoor master unit

 

Displayed when

 

 

Stop

 

 

L07

There is group wire in individual indoor

error is detected

 

 

 

unit.

 

 

 

 

 

 

 

 

 

L08

Unset indoor group address

 

 

 

 

 

 

1. Check whether remote controller connection (Group/Individual) was changed or not after power supply turned on

(Finish of group construction/Address check).

*If group construction and address are not normal when the power has been turned on, the mode automatically shifts to address setup mode. (Resetting of address)

L09

Unset indoor capacity

Stop

Displayed when

1.

Set indoor capacity (CODE No. (DN) = 11)

error is detected

 

 

 

 

 

 

 

 

 

 

 

 

 

L30

Abnormal input of outside interlock

Stop

Displayed when

1.

Check outside devices.

error is detected

2.

Check indoor P.C. board.

 

 

 

 

 

 

 

 

 

 

 

 

 

Float switch operation

P10 • Float circuit, Disconnection, Coming-off, Float switch contact error

P12 Indoor DC fan error

Stop

Displayed when

error is detected

 

 

 

Stop

Displayed when

error is detected

 

1.Trouble of drain pump

2.Clogging of drain pump

3.Check float switch.

4.Check indoor P.C. board.

1.Position detection error

2.Over-current protective circuit of indoor fan driving unit operated.

3.Indoor fan locked.

4.Check indoor P.C. board.

4-way valve system error

P19 • After heating operation has started, indoor heat exchangers temp. is down.

Stop

Displayed when

(Automatic reset)

error is detected

1.Check 4-way valve.

2.Check 2-way valve and check valve.

3.Check indoor heat exchanger (TC/TCJ).

4.Check indoor P.C. board.

P31

Own unit stops while warning is output

Stop

Displayed when

1.

Judge follower unit while header unit is [E03], [L03], [L07] or [L08].

(Follower unit)

2.

Check indoor P.C. board.

to other indoor units.

error is detected

 

(Automatic reset)

 

 

 

 

 

 

 

 

 

F01

Coming-off, disconnection or short of

Stop

Displayed when

1.

Check indoor heat exchanger temp. sensor (TCJ).

indoor heat exchanger temp. sensor

2. Check indoor P.C. board.

(Automatic reset)

error is detected

 

 

(TCJ)

 

 

 

 

F02

Coming-off, disconnection or short of

Stop

Displayed when

1.

Check indoor heat exchanger temp. sensor (TC).

indoor heat exchanger temp. sensor

2. Check indoor P.C. board.

(Automatic reset)

error is detected

 

 

(TC)

 

 

 

 

F10

Coming-off, disconnection or short of

Stop

Displayed when

1.

Check indoor heat exchanger temp. sensor (TA).

indoor heat exchanger temp. sensor

2. Check indoor P.C. board.

(Automatic reset)

error is detected

 

 

(TA)

 

 

 

 

F29

Indoor EEPROM error

Stop

Displayed when

1. Check indoor EEPROM. (including socket insertion)

• EEPROM access error

(Automatic reset)

error is detected

2.

Check indoor P.C. board.

 

 

 

 

 

 

 

 

 

 

 

Communication error between indoor

Stop

Displayed when

1.

Check indoor P.C. board.

E10

MCU

 

 

(Automatic reset)

error is detected

 

 

 

• Communication error between fan

 

 

 

 

 

 

 

 

driving MCU and main MCU

 

 

 

 

 

 

 

 

 

 

 

Regular communication error between

Stop

Displayed when

1.

Check remote controller wiring.

 

2.

Check indoor power supply wiring.

E18

indoor aster and follower units and

(Automatic reset)

error is detected

 

between main and sub units

3.

Check indoor P.C. board.

 

 

 

– 44 –

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Image 44
Toshiba RAV-SM1403AT-E1 service manual Error mode detected by indoor unit, Tcj
Page 43 Page 45

RAV-SM1403AT-E1 specifications

The Toshiba RAV-SM1403AT-E1 is a state-of-the-art air conditioning system designed for residential and commercial applications. Its advanced features and cutting-edge technology ensure optimal cooling and heating performance, making it a popular choice among consumers and businesses alike.

One of the standout characteristics of the RAV-SM1403AT-E1 is its energy efficiency. This model is equipped with a highly efficient inverter compressor that adjusts its output based on the cooling load required, which results in significant energy savings compared to traditional air conditioning systems. Its impressive Seasonal Energy Efficiency Ratio (SEER) ratings highlight its ability to provide effective climate control while minimizing electricity consumption.

The RAV-SM1403AT-E1 utilizes Toshiba’s innovative DC inverter technology, which allows for smoother and quieter operation. This means that users can enjoy a comfortable indoor environment without the disruptive noise often associated with conventional models. In addition to its quiet operation, this air conditioner also features an advanced air filtration system that helps to maintain indoor air quality by removing dust, allergens, and other pollutants.

Another major feature of this system is its versatility in installation. The RAV-SM1403AT-E1 can be installed in various configurations, allowing it to adapt to different spaces and design requirements. It supports multiple indoor units that can be connected to a single outdoor unit, providing flexibility for cooling or heating multiple areas simultaneously.

Smart technology is also integrated into the RAV-SM1403AT-E1. Users can take advantage of remote control options, including Wi-Fi capabilities that allow for convenient management of the air conditioning system via smartphones or tablets. This level of control ensures that users can adjust settings even when they are not present, increasing comfort and efficiency.

The build quality of the Toshiba RAV-SM1403AT-E1 reflects its durability and reliability. Designed to withstand varying environmental conditions, it includes corrosion-resistant features that extend the lifespan of the unit, making it a practical investment for both home and commercial use.

In summary, the Toshiba RAV-SM1403AT-E1 combines energy efficiency, advanced technology, and flexible installation options, making it an excellent choice for those seeking a high-performance air conditioning solution. With its innovative features and commitment to sustainability, this model stands out in the competitive HVAC market.
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