Check

code

[P20]

Outdoor

LED display



z z





{

Check and troubleshooting

(Item without special mention Indicates part of outdoor unit.)

[High pressure protective operation]

 

 

 

 

NO

 

 

Is valve fully opened?

Open valve fully.

 

 

 

 

 

 

 

 

 

 

 

 

YES

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Reset the power supply

 

 

 

 

 

 

and then perform test run

 

 

Cooling season

 

matching to the season.

 

 

Cooling operation

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Heating season Heating operation

Is there no problem

NO

on outdoor TL sensor?

 

 

(Measurement of resistance value)

 

YES

Replace sensor.

Is there no crack or

NO

loosening of outdoor fan?

 

 

 

YES

Check outdoor fan.

Defect → Replace, retightening

Does not the outdoor fan

NO

perform abnormal operation?

 

 

 

YES

Check the same items as

[P22] error.

Is there no element

which interfere heat exchange YES of outdoor unit?

•Clogging of heat exchanger

•Short circuit

NO

Eliminate interfering element.

Check overcharge of refrigerant, clogging of cycle, broken pipe, abnormal overload, etc.

Defect → Correct defective position.

Does indoor fan

NO

 

Are indoor fan motor

 

NO

 

 

 

normally operate?

 

 

and connector normal?

 

 

 

 

 

YES

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

YES

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Repair defective position.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Are resistance values

 

NO

 

 

 

 

 

 

 

 

 

 

 

Replace

 

 

 

 

 

of indoor TC and TCJ

 

 

 

 

 

 

 

 

 

 

 

 

 

sensor.

 

 

 

 

 

sensors normal?

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

YES

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Check indoor P.C. board.

 

 

 

 

 

 

 

 

 

 

 

 

 

Defect → Replace

Is there no element which

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

interfere heat exchange of indoor unit?

 

YES

 

 

 

 

 

 

 

 

 

• Clogging of filter

 

 

 

 

 

 

 

 

Eliminate interfering element.

 

 

 

 

 

• Clogging of heat exchanger

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

•Short circuit

NO

Check overcharge of refrigerant, clogging of cycle, broken pipe, abnormal overload, etc.

Defect → Correct defective position.

– 58 –

Page 57 Page 59
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Image 58
Toshiba RAV-SM1403AT-E1 service manual Open valve fully
Page 57 Page 59

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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