Check Code List

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

Stop

Displayed when

1.

Check cables of remote controller and communication adapters.

 

 

 

E03

controller (including wireless) and

 

• Remote controller LCD display OFF (Disconnection)

(Automatic reset)

error is detected

 

 

communication adapter

 

• Central remote controller [97] check code

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

The serial signal is not output from

 

 

1.

Outdoor unit does not completely operate.

 

outdoor unit to indoor unit.

 

 

 

Inter-unit wire check, correction of miswiring

 

• Miswiring of inter-unit wire

 

 

 

 

Stop

Displayed when

 

• Check outdoor P.C. board. Correct wiring of P.C. board.

E04

• Defective serial sending circuit on

 

(Automatic reset)

error is detected

2.

When outdoor unit normally operates

 

outdoor P.C. board

 

 

 

 

 

 

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

 

• Defective serial receiving circuit on

 

 

 

 

 

 

 

 

 

indoor P.C. board

 

 

 

 

 

 

 

 

 

 

E08

Duplicated indoor unit address

 

 

1.

Check whether remote controller connection (Group/Individual)

 

 

 

 

 

was changed or not after power supply turned on

 

 

 

 

 

L03

Duplicated indoor header unit

 

Displayed when

 

(Finish of group construction/Address check).

 

 

Stop

 

* If group construction and address are not normal when the

 

 

 

 

 

error is detected

 

 

There is group wire in individual indoor

 

power has been turned on, the mode automatically shifts to

L07

 

 

 

 

 

unit.

 

 

 

address setup mode. (Resetting of address)

 

 

 

 

 

 

 

 

 

 

L08

Unset indoor group address

 

 

 

 

 

 

 

 

 

L09

Unset indoor capacity

Stop

Displayed when

1. Set indoor capacity (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

 

 

1.

Trouble of drain pump

 

 

Displayed when

2. Clogging of drain pump

P10

• Float circuit, Disconnection,

Stop

error is detected

3.

Check float switch.

 

 

 

Coming-off, Float switch contact error

 

 

 

 

 

4.

Check indoor P.C. board.

 

 

 

 

 

 

 

 

 

 

 

4-way valve system error

 

 

1.

Check 4-way valve.

 

Stop

Displayed when

2. Check 2-way valve and check valve.

P19

• After heating operation has started,

(Automatic reset)

error is detected

3.

Check indoor heat exchanger (TC/TCJ).

 

indoor heat exchangers temp. is

 

 

 

 

down.

 

 

4.

Check indoor P.C. board.

 

 

 

 

 

 

 

 

 

 

 

Own unit stops while warning is output

Stop

Displayed when

1.

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

P31

(Follower unit)

2. Check indoor P.C. board.

to other indoor units.

error is detected

 

(Automatic reset)

 

 

 

 

 

 

 

Coming-off, disconnection or short of

Stop

Displayed when

1.

Check indoor heat exchanger temp. sensor (TCJ).

F01

indoor heat exchanger temp. sensor

2. Check indoor P.C. board.

(Automatic reset)

error is detected

 

(TCJ)

 

 

 

 

 

 

 

 

 

 

 

 

Coming-off, disconnection or short of

Stop

Displayed when

1.

Check indoor heat exchanger temp. sensor (TC).

F02

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

 

 

• Communication error between fan

(Automatic reset)

error is detected

 

 

 

 

 

 

 

 

 

 

 

driving MCU and main MCU

 

 

 

 

 

 

 

 

 

 

 

Regular communication error between

Stop

Displayed when

1.

Check remote controller wiring.

E18

2.

Check indoor power supply wiring.

indoor header and follower units

(Automatic reset)

error is detected

 

3.

Check indoor P.C. board.

 

 

 

 

 

 

 

 

 

 

– 36 –

Page 36
Image 36
Toshiba RAV-SM2802DT-E Error mode detected by indoor unit, Operation of diagnostic function Judgment and measures

RAV-SM2802DT-TR, RAV-SM2242DT-TR, RAV-SM2802DT-E specifications

Toshiba has long been a leader in heating, ventilation, and air conditioning (HVAC) technology, offering innovative solutions that cater to both residential and commercial needs. Among their impressive lineup, the Toshiba RAV-SM2802DT-E and RAV-SM2242DT-E stand out as exceptional models designed for efficiency, performance, and comfort.

The RAV-SM2802DT-E is a powerful unit ideal for larger spaces, boasting a cooling capacity of 28,000 BTU/h and a heating capacity of 31,000 BTU/h. This model features a highly efficient inverter compressor, which adjusts the power consumption based on the cooling or heating demand, ensuring optimal energy use. This inverter technology not only reduces energy consumption but also maintains a stable indoor temperature for enhanced comfort.

On the other hand, the RAV-SM2242DT-E is tailored for mid-sized applications with a cooling capacity of 22,000 BTU/h and a heating capacity of 25,000 BTU/h. This model also embraces inverter technology, promoting lower operational costs while delivering reliable performance. Both units come with a high energy efficiency rating, reducing environmental impact and saving on utility bills.

One of the key characteristics of these Toshiba models is their advanced filtration system. Equipped with a high-performance filtration mechanism, they can effectively reduce dust, allergens, and other pollutants, ensuring a healthier indoor environment. The units also operate quietly, contributing to a peaceful atmosphere, whether in a home, office, or commercial space.

Both the RAV-SM2802DT-E and RAV-SM2242DT-E are designed with user convenience in mind. They come with a user-friendly remote control, allowing for easy adjustments and settings from anywhere in the room. Compatibility with smart home systems further enhances user experience by enabling remote monitoring and control through smartphones or tablets.

Constructed with durability in mind, these units are built to withstand diverse weather conditions, making them suitable for various climatic environments. Additionally, their aesthetic design allows for seamless integration into any setting, ensuring that performance does not compromise on looks.

In summary, Toshiba's RAV-SM2802DT-E and RAV-SM2242DT-E offer a blend of superior technology, energy efficiency, and user-friendly features. With their inverter technology, advanced filtration systems, and durable designs, these models represent Toshiba's commitment to quality and innovation in the HVAC industry. Whether for residential or commercial applications, these units guarantee comfort and reliability all year round.