[E03 error] (Master indoor unit)

[E03 error] is detected when the indoor unit cannot receive a signal from the wired remote controller (also central controller).

Check A and B remote controllers and communication lines of the central control system U3 and U4.

As communication is impossible, this check code [E03] is not displayed on the wired remote controller and the central controller.

[E01] is displayed on the wired remote controller and [C06 error] is displayed on the central controller. If these check codes generate during operation, the air conditioner stops.

[F29 error]

This check code indicates a detection error of IC10 non-volatile memory (EEPROM) on the indoor unit P.C. board, which generated during operation of the air conditioner. Replace the service P.C. board.

∗When EEPROM was not inserted when power supply turned on or when the EEPROM data read/write operation is impossible at all, the automatic address mode is repeated. In this time, [97 error] is displayed on the central controller.

 

(Approx.

(Approx.

 

 

 

 

 

3 minutes)

1 minute)

 

 

 

 

 

(Power ON)

 

 

[SET] is displayed on

 

 

 

[SETTING]

 

LED (D002) on indoor unit

 

Reboot

 

 

 

 

 

 

P.C. board flashes with

 

 

 

wired remote controller.

goes off.

 

 

(Reset)

 

 

 

 

1Hz for approx. 10 seconds.

 

 

 

 

 

 

 

 

 

 

 

 

(Repetition)

[P31 error] (Follower indoor unit)

When the master unit of a group operation detected [E03], [L03], [L07] or [L08] error, the follower unit of the group operation detects [P31 error] and then the unit stops.

There is no display of the check code or alarm history of the wired remote controller. (In this model, the mode enters in automatic address set mode when the header unit detected [L03], [L07] or [L08] error.)

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Toshiba CONCEALED DUCK TYPE, CEILING TYPE E03 error Master indoor unit, F29 error, P31 error Follower indoor unit
Page 60 Page 62

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.
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