Lamp indication

Check code

Cause of trouble occurrence

Operation

Timer

Ready

F01

Heat exchanger sensor (TCJ) error

 

 

 

 

 

 

 

 

 

 

 

 

 

F02

Heat exchanger sensor (TC) error

 

Indoor unit sensor error

 

 

 

 

 

 

 

 

 

 

 

 

Alternate flash

 

F10

Heat exchanger sensor (TA) error

 

 

 

 

 

 

 

 

F04

Discharge temp. sensor (TD) error

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

F06

Temp. sensor (TE) error

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Operation

Timer

Ready

F07

Temp. sensor (TL) error

 

 

 

 

 

 

 

 

 

F08

Temp. sensor (TO) error

 

 

Sensor error of outdoor unit 1

 

 

 

 

 

 

 

 

 

 

 

 

 

Alternate flash

 

F12

Temp. sensor (TS) error

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

F13

Temp. sensor (TH) error

 

 

 

 

 

 

 

 

 

 

 

 

F15

Temp. Sensor miswiring (TE, TS)

 

 

 

 

 

 

 

Operation

Timer

Ready

 

 

 

 

 

 

 

 

 

F29

Indoor EEPROM error

 

 

 

 

Simultaneous flash

 

 

 

 

 

 

 

Operation

Timer

Ready

 

 

 

 

 

 

 

 

 

F31

Outdoor EEPROM error

 

 

 

 

Simultaneous flash

 

 

 

 

 

 

 

 

 

 

H01

Compressor break down

 

 

 

Operation

Timer

Ready

H02

Compressor lock

 

 

 

Outdoor compressor system error 1

 

 

 

H03

Current detection circuit error

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Flash

 

H04

Case thermostat worked.

 

 

 

 

 

 

 

 

 

 

 

 

H06

Outdoor unit low pressure system error

 

 

 

 

L03

Duplicated header indoor units

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Operation

Timer

Ready

L07

There is indoor unit of group connection AUTO address

 

in individual indoor unit.

 

 

If group construction and

 

 

 

 

Unsetting of group address

 

 

address are not normal

 

 

 

L08

 

 

 

 

 

 

 

when power supply turned on,

 

 

 

 

 

 

 

 

Simultaneous flash

 

Missed setting

 

 

 

automatically goes to address

 

 

 

L09

 

 

 

setup mode.

 

 

 

(Unset indoor capacity)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

L10

Unset model type (Service board)

 

 

 

 

 

 

 

 

 

 

Operation

Timer

Ready

L20

Duplicated indoor central addresses

 

 

 

 

L29

Outdoor unit and other error

 

 

Others

 

 

 

 

 

 

 

 

 

 

 

 

 

Simultaneous flash

L30

Outside interlock error

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

L31

Negative phase error

 

 

 

 

 

 

 

 

 

1: These are representative examples and the check code differs according to the outdoor unit to be combined.

 

 

 

 

– 45 –

 

 

 

 

Page 45
Image 45
Toshiba CONCEALED DUCK TYPE, CEILING TYPE service manual Lamp indication Check code

CONCEALED DUCK TYPE, CEILING TYPE specifications

Toshiba has long been a name associated with innovative and efficient HVAC solutions, and their Concealed Duck Type, Ceiling Type air conditioning units exemplify this legacy. These units are designed to provide exceptional comfort while seamlessly integrating into a variety of interior spaces.

One of the main features of the Toshiba Concealed Duck Type, Ceiling Type system is its discreet installation method. Unlike traditional wall-mounted units, this system is installed within the ceiling, allowing for an unobtrusive appearance. The result is a clean and modern aesthetic, ideal for residential and commercial settings where design is a priority. With only the supply and return grilles visible, the units maintain the integrity of the interior decor.

The technology employed in Toshiba's air conditioning systems revolves around energy efficiency and user comfort. The units are equipped with inverter technology, which allows for precise temperature control and reduces energy consumption. The inverter adjusts the compressor speed to meet the cooling or heating demand, ensuring not only optimal comfort but also reduced operational costs.

Another significant characteristic of the Toshiba Concealed Duck Type units is their quiet operation. Designed with sound-dampening features, they operate at low noise levels, making them suitable for environments where noise can be a concern, such as offices, hotels, or residential spaces.

Toshiba's advanced air filtration system further enhances indoor air quality. Integrated filters capture dust and allergens, creating a healthier indoor environment. This is particularly beneficial for individuals with allergies or respiratory concerns, as the system works to reduce airborne pollutants.

The units also offer flexible control options. With the availability of remote control or smart home integration, users can easily adjust settings to suit their preferences. Additionally, some models come with programmable timers, allowing for energy savings when the space is unoccupied.

Furthermore, these units are designed for reliability and ease of maintenance. Toshiba emphasizes durability in their construction, and the concealed installation not only enhances aesthetics but also protects the unit from potential damage. Routine maintenance can be performed efficiently, ensuring longevity and sustained performance.

In summary, Toshiba's Concealed Duck Type, Ceiling Type air conditioning units deliver a blend of innovative technology, energy efficiency, and contemporary design. With features like inverter technology, quiet operation, advanced air filtration, and flexible control options, they offer a compelling choice for those seeking comfort without compromising style. These units stand as a testament to Toshiba's commitment to quality and customer satisfaction in the HVAC industry.