Operation of diagnostic function

 

 

 

 

 

 

 

 

 

Check code

 

 

 

 

 

 

 

 

 

 

Judgment and measures

Indoor unit

Cause of operation

Status of

Condition

 

 

 

air conditioner

 

 

before

after

 

 

 

 

 

 

 

 

 

3 series

4 series

 

 

 

 

 

 

 

 

 

 

 

 

H03

H03

Current detection circuit error

Stop

Displayed when

1.

Check outdoor P.C. board.

error is detected

 

(AC current detection circuit)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Discharge temp. error

 

Displayed when

1.

Check refrigerating cycle (Gas leak)

P03

P03

∗ Discharge temp. (TD) over

Stop

2.

Trouble of electronic expansion valve

error is detected

 

 

specified value was detected.

 

3.

Check discharge temp. sensor (TD).

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

1.

Check service valves are fully opened.

 

 

 

 

 

 

(Gas side, Liquid side)

 

 

 

 

 

2.

Check of outdoor fan operation.

 

 

 

 

 

3.

Check motor error of outdoor fan.

 

 

 

 

Displayed when

4.

Check clogging of outdoor PMV.

 

P04

High pressure SW system error

Stop

5.

Check clogging of heat exchanger in indoor/outdoor units.

 

error is detected

 

 

 

 

6.

Short-circuit status of suction/discharge air in outdoor unit.

 

 

 

 

 

P04

 

 

 

 

7.

Check outdoor P.C. board error.

 

 

 

 

8.

Check fan system error (Cause of air volume drop) at

 

 

 

 

 

 

 

 

 

 

 

indoor side.

 

 

 

 

 

9.

Check PMV opening status in indoor unit.

 

 

 

 

 

 

 

 

P05

Power supply voltage error

Stop

Displayed when

1.

Check power supply voltage. AC198 to 264V

 

error is detected

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

1.

Check outdoor heat exchanger sensor (TL).

 

 

High pressure protective operation

 

 

2.

Check indoor heat exchanger sensor (TC, TCJ).

 

 

• During cooling operation, outdoor

 

 

3.

Check full open of service valve.

 

P20

temp. sensor (TL) detected

Stop

Displayed when

4.

Check indoor/outdoor fan.

 

temperature over specified temp.

 

 

 

error is detected

5.

Check PMV (Pulse Motor Valve).

 

 

• During heating operation, indoor

 

 

 

 

 

 

 

 

 

6.

Check clogging and short circuit of indoor/outdoor heat

 

 

temp. sensor (TC, TCJ) detected

 

 

 

 

temperature over specified temp.

 

 

 

exchanger.

 

 

 

 

 

7.

Overcharge of refrigerant. Recharge

 

 

 

 

 

 

 

 

 

 

 

 

1.

Check lock of fan motor.

P22

P22

Outdoor fan system error

Stop

Displayed when

2.

Check power supply voltage.

error is detected

 

AC198 to 264V

 

 

 

 

 

 

 

 

 

 

3.

Check outdoor P.C. board.

 

 

 

 

 

 

 

 

 

 

 

 

1.

When performing operation while taking-off compressor

P26

P26

Short-circuit error of compressor

Stop

Displayed when

 

wire, P26 error occurs. Check control P.C. board.

 

 

driving element

2.

When performing operation while taking-off compressor

 

error is detected

 

 

 

 

 

 

 

 

 

wire, an error does not occur. (Compressor rare short)

 

 

 

 

 

 

 

P29

P29

Position detection circuit error

Stop

Displayed when

1.

Check control P.C. board.

error is detected

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

– 46 –

Page 45 Page 47
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Image 46
Toshiba RAV-SM1403AT-E1 service manual After Series
Page 45 Page 47

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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